Rework time service to fix time passing offline.

2025-08-11 13:22:33 -07:00 · 2023-10-29 13:50:55 +00:00
parent a560b9f5a2
commit e4915fb7d2
144 changed files with 8734 additions and 3972 deletions
--- a/src/core/hle/service/psc/psc.cpp
+++ b/src/core/hle/service/psc/psc.cpp
@@ -4,9 +4,13 @@
 #include <memory>

 #include "common/logging/log.h"
+#include "core/core.h"
 #include "core/hle/service/ipc_helpers.h"
 #include "core/hle/service/psc/psc.h"
-#include "core/hle/service/server_manager.h"
+#include "core/hle/service/psc/time/manager.h"
+#include "core/hle/service/psc/time/power_state_service.h"
+#include "core/hle/service/psc/time/service_manager.h"
+#include "core/hle/service/psc/time/static.h"
 #include "core/hle/service/service.h"

 namespace Service::PSC {
@@ -76,6 +80,17 @@ void LoopProcess(Core::System& system) {

    server_manager->RegisterNamedService("psc:c", std::make_shared<IPmControl>(system));
    server_manager->RegisterNamedService("psc:m", std::make_shared<IPmService>(system));
+
+    auto time = std::make_shared<Time::TimeManager>(system);
+
+    server_manager->RegisterNamedService(
+        "time:m", std::make_shared<Time::ServiceManager>(system, time, server_manager.get()));
+    server_manager->RegisterNamedService(
+        "time:su", std::make_shared<Time::StaticService>(
+                       system, Time::StaticServiceSetupInfo{0, 0, 0, 0, 0, 1}, time, "time:su"));
+    server_manager->RegisterNamedService("time:al",
+                                         std::make_shared<Time::IAlarmService>(system, time));
+
    ServerManager::RunServer(std::move(server_manager));
 }

--- a/src/core/hle/service/psc/time/alarms.cpp
+++ b/src/core/hle/service/psc/time/alarms.cpp
@@ -0,0 +1,209 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/core.h"
+#include "core/hle/service/psc/time/alarms.h"
+#include "core/hle/service/psc/time/manager.h"
+
+namespace Service::PSC::Time {
+Alarm::Alarm(Core::System& system, KernelHelpers::ServiceContext& ctx, AlarmType type)
+    : m_ctx{ctx}, m_event{ctx.CreateEvent("Psc:Alarm:Event")} {
+    m_event->Clear();
+
+    switch (type) {
+    case WakeupAlarm:
+        m_priority = 1;
+        break;
+    case BackgroundTaskAlarm:
+        m_priority = 0;
+        break;
+    default:
+        UNREACHABLE();
+        return;
+    }
+}
+
+Alarm::~Alarm() {
+    m_ctx.CloseEvent(m_event);
+}
+
+Alarms::Alarms(Core::System& system, StandardSteadyClockCore& steady_clock,
+               PowerStateRequestManager& power_state_request_manager)
+    : m_system{system}, m_ctx{system, "Psc:Alarms"}, m_steady_clock{steady_clock},
+      m_power_state_request_manager{power_state_request_manager}, m_event{m_ctx.CreateEvent(
+                                                                      "Psc:Alarms:Event")} {}
+
+Alarms::~Alarms() {
+    m_ctx.CloseEvent(m_event);
+}
+
+Result Alarms::Enable(Alarm& alarm, s64 time) {
+    R_UNLESS(m_steady_clock.IsInitialized(), ResultClockUninitialized);
+
+    std::scoped_lock l{m_mutex};
+    R_UNLESS(alarm.IsLinked(), ResultAlarmNotRegistered);
+
+    auto time_ns{time + m_steady_clock.GetRawTime()};
+    auto one_second_ns{
+        std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::seconds(1)).count()};
+    time_ns = Common::AlignUp(time_ns, one_second_ns);
+    alarm.SetAlertTime(time_ns);
+
+    Insert(alarm);
+    R_RETURN(UpdateClosestAndSignal());
+}
+
+void Alarms::Disable(Alarm& alarm) {
+    std::scoped_lock l{m_mutex};
+    if (!alarm.IsLinked()) {
+        return;
+    }
+
+    Erase(alarm);
+    UpdateClosestAndSignal();
+}
+
+void Alarms::CheckAndSignal() {
+    std::scoped_lock l{m_mutex};
+    if (m_alarms.empty()) {
+        return;
+    }
+
+    bool alarm_signalled{false};
+    for (auto& alarm : m_alarms) {
+        if (m_steady_clock.GetRawTime() >= alarm.GetAlertTime()) {
+            alarm.Signal();
+            alarm.Lock();
+            Erase(alarm);
+
+            m_power_state_request_manager.UpdatePendingPowerStateRequestPriority(
+                alarm.GetPriority());
+            alarm_signalled = true;
+        }
+    }
+
+    if (!alarm_signalled) {
+        return;
+    }
+
+    m_power_state_request_manager.SignalPowerStateRequestAvailability();
+    UpdateClosestAndSignal();
+}
+
+bool Alarms::GetClosestAlarm(Alarm** out_alarm) {
+    std::scoped_lock l{m_mutex};
+    auto alarm = m_alarms.empty() ? nullptr : std::addressof(m_alarms.front());
+    *out_alarm = alarm;
+    return alarm != nullptr;
+}
+
+void Alarms::Insert(Alarm& alarm) {
+    // Alarms are sorted by alert time, then priority
+    auto it{m_alarms.begin()};
+    while (it != m_alarms.end()) {
+        if (alarm.GetAlertTime() < it->GetAlertTime() ||
+            (alarm.GetAlertTime() == it->GetAlertTime() &&
+             alarm.GetPriority() < it->GetPriority())) {
+            m_alarms.insert(it, alarm);
+            return;
+        }
+        it++;
+    }
+
+    m_alarms.push_back(alarm);
+}
+
+void Alarms::Erase(Alarm& alarm) {
+    m_alarms.erase(m_alarms.iterator_to(alarm));
+}
+
+Result Alarms::UpdateClosestAndSignal() {
+    m_closest_alarm = m_alarms.empty() ? nullptr : std::addressof(m_alarms.front());
+    R_SUCCEED_IF(m_closest_alarm == nullptr);
+
+    m_event->Signal();
+
+    R_SUCCEED();
+}
+
+IAlarmService::IAlarmService(Core::System& system_, std::shared_ptr<TimeManager> manager)
+    : ServiceFramework{system_, "time:al"}, m_system{system}, m_alarms{manager->m_alarms} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, &IAlarmService::CreateWakeupAlarm, "CreateWakeupAlarm"},
+        {1, &IAlarmService::CreateBackgroundTaskAlarm, "CreateBackgroundTaskAlarm"},
+    };
+    // clang-format on
+    RegisterHandlers(functions);
+}
+
+void IAlarmService::CreateWakeupAlarm(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(ResultSuccess);
+    rb.PushIpcInterface<ISteadyClockAlarm>(system, m_alarms, AlarmType::WakeupAlarm);
+}
+
+void IAlarmService::CreateBackgroundTaskAlarm(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(ResultSuccess);
+    rb.PushIpcInterface<ISteadyClockAlarm>(system, m_alarms, AlarmType::BackgroundTaskAlarm);
+}
+
+ISteadyClockAlarm::ISteadyClockAlarm(Core::System& system_, Alarms& alarms, AlarmType type)
+    : ServiceFramework{system_, "ISteadyClockAlarm"}, m_ctx{system, "Psc:ISteadyClockAlarm"},
+      m_alarms{alarms}, m_alarm{system, m_ctx, type} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0,  &ISteadyClockAlarm::GetAlarmEvent, "GetAlarmEvent"},
+        {1,  &ISteadyClockAlarm::Enable, "Enable"},
+        {2,  &ISteadyClockAlarm::Disable, "Disable"},
+        {3,  &ISteadyClockAlarm::IsEnabled, "IsEnabled"},
+        {10, nullptr, "CreateWakeLock"},
+        {11, nullptr, "DestroyWakeLock"},
+    };
+    // clang-format on
+    RegisterHandlers(functions);
+}
+
+void ISteadyClockAlarm::GetAlarmEvent(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::ResponseBuilder rb{ctx, 2, 1};
+    rb.Push(ResultSuccess);
+    rb.PushCopyObjects(m_alarm.GetEventHandle());
+}
+
+void ISteadyClockAlarm::Enable(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto time{rp.Pop<s64>()};
+
+    auto res = m_alarms.Enable(m_alarm, time);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void ISteadyClockAlarm::Disable(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    m_alarms.Disable(m_alarm);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+}
+
+void ISteadyClockAlarm::IsEnabled(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(ResultSuccess);
+    rb.Push<bool>(m_alarm.IsLinked());
+}
+
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/alarms.h
+++ b/src/core/hle/service/psc/time/alarms.h
@@ -0,0 +1,139 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <mutex>
+
+#include "core/hle/kernel/k_event.h"
+#include "core/hle/service/ipc_helpers.h"
+#include "core/hle/service/kernel_helpers.h"
+#include "core/hle/service/psc/time/clocks/standard_steady_clock_core.h"
+#include "core/hle/service/psc/time/common.h"
+#include "core/hle/service/psc/time/power_state_request_manager.h"
+#include "core/hle/service/server_manager.h"
+#include "core/hle/service/service.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::PSC::Time {
+class TimeManager;
+
+enum AlarmType : u32 {
+    WakeupAlarm = 0,
+    BackgroundTaskAlarm = 1,
+};
+
+struct Alarm : public Common::IntrusiveListBaseNode<Alarm> {
+    using AlarmList = Common::IntrusiveListBaseTraits<Alarm>::ListType;
+
+    Alarm(Core::System& system, KernelHelpers::ServiceContext& ctx, AlarmType type);
+    ~Alarm();
+
+    Kernel::KReadableEvent& GetEventHandle() {
+        return m_event->GetReadableEvent();
+    }
+
+    s64 GetAlertTime() const {
+        return m_alert_time;
+    }
+
+    void SetAlertTime(s64 time) {
+        m_alert_time = time;
+    }
+
+    u32 GetPriority() const {
+        return m_priority;
+    }
+
+    void Signal() {
+        m_event->Signal();
+    }
+
+    Result Lock() {
+        // TODO
+        // if (m_lock_service) {
+        //     return m_lock_service->Lock();
+        // }
+        R_SUCCEED();
+    }
+
+    KernelHelpers::ServiceContext& m_ctx;
+
+    u32 m_priority;
+    Kernel::KEvent* m_event{};
+    s64 m_alert_time{};
+    // TODO
+    // nn::psc::sf::IPmStateLock* m_lock_service{};
+};
+
+class Alarms {
+public:
+    explicit Alarms(Core::System& system, StandardSteadyClockCore& steady_clock,
+                    PowerStateRequestManager& power_state_request_manager);
+    ~Alarms();
+
+    Kernel::KEvent& GetEvent() {
+        return *m_event;
+    }
+
+    s64 GetRawTime() {
+        return m_steady_clock.GetRawTime();
+    }
+
+    Result Enable(Alarm& alarm, s64 time);
+    void Disable(Alarm& alarm);
+    void CheckAndSignal();
+    bool GetClosestAlarm(Alarm** out_alarm);
+
+private:
+    void Insert(Alarm& alarm);
+    void Erase(Alarm& alarm);
+    Result UpdateClosestAndSignal();
+
+    Core::System& m_system;
+    KernelHelpers::ServiceContext m_ctx;
+
+    StandardSteadyClockCore& m_steady_clock;
+    PowerStateRequestManager& m_power_state_request_manager;
+    Alarm::AlarmList m_alarms;
+    Kernel::KEvent* m_event{};
+    Alarm* m_closest_alarm{};
+    std::mutex m_mutex;
+};
+
+class IAlarmService final : public ServiceFramework<IAlarmService> {
+public:
+    explicit IAlarmService(Core::System& system, std::shared_ptr<TimeManager> manager);
+
+    ~IAlarmService() override = default;
+
+private:
+    void CreateWakeupAlarm(HLERequestContext& ctx);
+    void CreateBackgroundTaskAlarm(HLERequestContext& ctx);
+
+    Core::System& m_system;
+    Alarms& m_alarms;
+};
+
+class ISteadyClockAlarm final : public ServiceFramework<ISteadyClockAlarm> {
+public:
+    explicit ISteadyClockAlarm(Core::System& system, Alarms& alarms, AlarmType type);
+
+    ~ISteadyClockAlarm() override = default;
+
+private:
+    void GetAlarmEvent(HLERequestContext& ctx);
+    void Enable(HLERequestContext& ctx);
+    void Disable(HLERequestContext& ctx);
+    void IsEnabled(HLERequestContext& ctx);
+
+    KernelHelpers::ServiceContext m_ctx;
+
+    Alarms& m_alarms;
+    Alarm m_alarm;
+};
+
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/clocks/context_writers.cpp
+++ b/src/core/hle/service/psc/time/clocks/context_writers.cpp
@@ -0,0 +1,83 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/core.h"
+#include "core/hle/service/psc/time/clocks/context_writers.h"
+
+namespace Service::PSC::Time {
+
+void ContextWriter::SignalAllNodes() {
+    std::scoped_lock l{m_mutex};
+    for (auto& operation : m_operation_events) {
+        operation.m_event->Signal();
+    }
+}
+
+void ContextWriter::Link(OperationEvent& operation_event) {
+    std::scoped_lock l{m_mutex};
+    m_operation_events.push_back(operation_event);
+}
+
+LocalSystemClockContextWriter::LocalSystemClockContextWriter(Core::System& system,
+                                                             SharedMemory& shared_memory)
+    : m_system{system}, m_shared_memory{shared_memory} {}
+
+Result LocalSystemClockContextWriter::Write(SystemClockContext& context) {
+    if (m_in_use) {
+        R_SUCCEED_IF(context == m_context);
+        m_context = context;
+    } else {
+        m_context = context;
+        m_in_use = true;
+    }
+
+    m_shared_memory.SetLocalSystemContext(context);
+
+    SignalAllNodes();
+
+    R_SUCCEED();
+}
+
+NetworkSystemClockContextWriter::NetworkSystemClockContextWriter(Core::System& system,
+                                                                 SharedMemory& shared_memory,
+                                                                 SystemClockCore& system_clock)
+    : m_system{system}, m_shared_memory{shared_memory}, m_system_clock{system_clock} {}
+
+Result NetworkSystemClockContextWriter::Write(SystemClockContext& context) {
+    s64 time{};
+    [[maybe_unused]] auto res = m_system_clock.GetCurrentTime(&time);
+
+    if (m_in_use) {
+        R_SUCCEED_IF(context == m_context);
+        m_context = context;
+    } else {
+        m_context = context;
+        m_in_use = true;
+    }
+
+    m_shared_memory.SetNetworkSystemContext(context);
+
+    SignalAllNodes();
+
+    R_SUCCEED();
+}
+
+EphemeralNetworkSystemClockContextWriter::EphemeralNetworkSystemClockContextWriter(
+    Core::System& system)
+    : m_system{system} {}
+
+Result EphemeralNetworkSystemClockContextWriter::Write(SystemClockContext& context) {
+    if (m_in_use) {
+        R_SUCCEED_IF(context == m_context);
+        m_context = context;
+    } else {
+        m_context = context;
+        m_in_use = true;
+    }
+
+    SignalAllNodes();
+
+    R_SUCCEED();
+}
+
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/clocks/context_writers.h
+++ b/src/core/hle/service/psc/time/clocks/context_writers.h
@@ -0,0 +1,79 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <list>
+
+#include "common/common_types.h"
+#include "core/hle/kernel/k_event.h"
+#include "core/hle/service/psc/time/clocks/system_clock_core.h"
+#include "core/hle/service/psc/time/common.h"
+#include "core/hle/service/psc/time/shared_memory.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::PSC::Time {
+
+class ContextWriter {
+private:
+    using OperationEventList = Common::IntrusiveListBaseTraits<OperationEvent>::ListType;
+
+public:
+    virtual ~ContextWriter() = default;
+
+    virtual Result Write(SystemClockContext& context) = 0;
+    void SignalAllNodes();
+    void Link(OperationEvent& operation_event);
+
+private:
+    OperationEventList m_operation_events;
+    std::mutex m_mutex;
+};
+
+class LocalSystemClockContextWriter : public ContextWriter {
+public:
+    explicit LocalSystemClockContextWriter(Core::System& system, SharedMemory& shared_memory);
+
+    Result Write(SystemClockContext& context) override;
+
+private:
+    Core::System& m_system;
+
+    SharedMemory& m_shared_memory;
+    bool m_in_use{};
+    SystemClockContext m_context{};
+};
+
+class NetworkSystemClockContextWriter : public ContextWriter {
+public:
+    explicit NetworkSystemClockContextWriter(Core::System& system, SharedMemory& shared_memory,
+                                             SystemClockCore& system_clock);
+
+    Result Write(SystemClockContext& context) override;
+
+private:
+    Core::System& m_system;
+
+    SharedMemory& m_shared_memory;
+    bool m_in_use{};
+    SystemClockContext m_context{};
+    SystemClockCore& m_system_clock;
+};
+
+class EphemeralNetworkSystemClockContextWriter : public ContextWriter {
+public:
+    EphemeralNetworkSystemClockContextWriter(Core::System& system);
+
+    Result Write(SystemClockContext& context) override;
+
+private:
+    Core::System& m_system;
+
+    bool m_in_use{};
+    SystemClockContext m_context{};
+};
+
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/clocks/ephemeral_network_system_clock_core.h
+++ b/src/core/hle/service/psc/time/clocks/ephemeral_network_system_clock_core.h
@@ -0,0 +1,21 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/result.h"
+#include "core/hle/service/psc/time/clocks/context_writers.h"
+#include "core/hle/service/psc/time/clocks/steady_clock_core.h"
+#include "core/hle/service/psc/time/clocks/system_clock_core.h"
+#include "core/hle/service/psc/time/common.h"
+
+namespace Service::PSC::Time {
+
+class EphemeralNetworkSystemClockCore : public SystemClockCore {
+public:
+    explicit EphemeralNetworkSystemClockCore(SteadyClockCore& steady_clock)
+        : SystemClockCore{steady_clock} {}
+    ~EphemeralNetworkSystemClockCore() override = default;
+};
+
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/clocks/standard_local_system_clock_core.cpp
+++ b/src/core/hle/service/psc/time/clocks/standard_local_system_clock_core.cpp
@@ -0,0 +1,20 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/psc/time/clocks/standard_local_system_clock_core.h"
+
+namespace Service::PSC::Time {
+
+void StandardLocalSystemClockCore::Initialize(SystemClockContext& context, s64 time) {
+    SteadyClockTimePoint time_point{};
+    if (GetCurrentTimePoint(time_point) == ResultSuccess &&
+        context.steady_time_point.IdMatches(time_point)) {
+        SetContextAndWrite(context);
+    } else if (SetCurrentTime(time) != ResultSuccess) {
+        LOG_ERROR(Service_Time, "Failed to SetCurrentTime");
+    }
+
+    SetInitialized();
+}
+
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/clocks/standard_local_system_clock_core.h
+++ b/src/core/hle/service/psc/time/clocks/standard_local_system_clock_core.h
@@ -0,0 +1,23 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/result.h"
+#include "core/hle/service/psc/time/clocks/context_writers.h"
+#include "core/hle/service/psc/time/clocks/steady_clock_core.h"
+#include "core/hle/service/psc/time/clocks/system_clock_core.h"
+#include "core/hle/service/psc/time/common.h"
+
+namespace Service::PSC::Time {
+
+class StandardLocalSystemClockCore : public SystemClockCore {
+public:
+    explicit StandardLocalSystemClockCore(SteadyClockCore& steady_clock)
+        : SystemClockCore{steady_clock} {}
+    ~StandardLocalSystemClockCore() override = default;
+
+    void Initialize(SystemClockContext& context, s64 time);
+};
+
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/clocks/standard_network_system_clock_core.cpp
+++ b/src/core/hle/service/psc/time/clocks/standard_network_system_clock_core.cpp
@@ -0,0 +1,42 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/psc/time/clocks/standard_network_system_clock_core.h"
+
+namespace Service::PSC::Time {
+
+void StandardNetworkSystemClockCore::Initialize(SystemClockContext& context, s64 accuracy) {
+    if (SetContextAndWrite(context) != ResultSuccess) {
+        LOG_ERROR(Service_Time, "Failed to SetContext");
+    }
+    m_sufficient_accuracy = accuracy;
+    SetInitialized();
+}
+
+bool StandardNetworkSystemClockCore::IsAccuracySufficient() {
+    if (!IsInitialized()) {
+        return false;
+    }
+
+    SystemClockContext context{};
+    SteadyClockTimePoint current_time_point{};
+    if (GetCurrentTimePoint(current_time_point) != ResultSuccess ||
+        GetContext(context) != ResultSuccess) {
+        return false;
+    }
+
+    s64 seconds{};
+    if (GetSpanBetweenTimePoints(&seconds, context.steady_time_point, current_time_point) !=
+        ResultSuccess) {
+        return false;
+    }
+
+    if (std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::seconds(seconds))
+            .count() < m_sufficient_accuracy) {
+        return true;
+    }
+
+    return false;
+}
+
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/clocks/standard_network_system_clock_core.h
+++ b/src/core/hle/service/psc/time/clocks/standard_network_system_clock_core.h
@@ -0,0 +1,30 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <chrono>
+
+#include "core/hle/result.h"
+#include "core/hle/service/psc/time/clocks/context_writers.h"
+#include "core/hle/service/psc/time/clocks/steady_clock_core.h"
+#include "core/hle/service/psc/time/clocks/system_clock_core.h"
+#include "core/hle/service/psc/time/common.h"
+
+namespace Service::PSC::Time {
+
+class StandardNetworkSystemClockCore : public SystemClockCore {
+public:
+    explicit StandardNetworkSystemClockCore(SteadyClockCore& steady_clock)
+        : SystemClockCore{steady_clock} {}
+    ~StandardNetworkSystemClockCore() override = default;
+
+    void Initialize(SystemClockContext& context, s64 accuracy);
+    bool IsAccuracySufficient();
+
+private:
+    s64 m_sufficient_accuracy{
+        std::chrono ::duration_cast<std::chrono::nanoseconds>(std::chrono::days(10)).count()};
+};
+
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/clocks/standard_steady_clock_core.cpp
+++ b/src/core/hle/service/psc/time/clocks/standard_steady_clock_core.cpp
@@ -0,0 +1,101 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <chrono>
+
+#include "core/core.h"
+#include "core/core_timing.h"
+#include "core/hle/service/psc/time/clocks/standard_steady_clock_core.h"
+
+namespace Service::PSC::Time {
+
+void StandardSteadyClockCore::Initialize(ClockSourceId clock_source_id, s64 rtc_offset,
+                                         s64 internal_offset, s64 test_offset,
+                                         bool is_rtc_reset_detected) {
+    m_clock_source_id = clock_source_id;
+    m_rtc_offset = rtc_offset;
+    m_internal_offset = internal_offset;
+    m_test_offset = test_offset;
+    if (is_rtc_reset_detected) {
+        SetResetDetected();
+    }
+    SetInitialized();
+}
+
+void StandardSteadyClockCore::SetRtcOffset(s64 offset) {
+    m_rtc_offset = offset;
+}
+
+void StandardSteadyClockCore::SetContinuousAdjustment(ClockSourceId clock_source_id, s64 time) {
+    auto ticks{m_system.CoreTiming().GetClockTicks()};
+
+    m_continuous_adjustment_time_point.rtc_offset = ConvertToTimeSpan(ticks).count();
+    m_continuous_adjustment_time_point.diff_scale = 0;
+    m_continuous_adjustment_time_point.shift_amount = 0;
+    m_continuous_adjustment_time_point.lower = time;
+    m_continuous_adjustment_time_point.upper = time;
+    m_continuous_adjustment_time_point.clock_source_id = clock_source_id;
+}
+
+void StandardSteadyClockCore::GetContinuousAdjustment(
+    ContinuousAdjustmentTimePoint& out_time_point) const {
+    out_time_point = m_continuous_adjustment_time_point;
+}
+
+void StandardSteadyClockCore::UpdateContinuousAdjustmentTime(s64 in_time) {
+    auto ticks{m_system.CoreTiming().GetClockTicks()};
+    auto uptime_ns{ConvertToTimeSpan(ticks).count()};
+    auto adjusted_time{((uptime_ns - m_continuous_adjustment_time_point.rtc_offset) *
+                        m_continuous_adjustment_time_point.diff_scale) >>
+                       m_continuous_adjustment_time_point.shift_amount};
+    auto expected_time{adjusted_time + m_continuous_adjustment_time_point.lower};
+
+    auto last_time_point{m_continuous_adjustment_time_point.upper};
+    m_continuous_adjustment_time_point.upper = in_time;
+    auto t1{std::min<s64>(expected_time, last_time_point)};
+    expected_time = std::max<s64>(expected_time, last_time_point);
+    expected_time = m_continuous_adjustment_time_point.diff_scale >= 0 ? t1 : expected_time;
+
+    auto new_diff{in_time < expected_time ? -55 : 55};
+
+    m_continuous_adjustment_time_point.rtc_offset = uptime_ns;
+    m_continuous_adjustment_time_point.shift_amount = expected_time == in_time ? 0 : 14;
+    m_continuous_adjustment_time_point.diff_scale = expected_time == in_time ? 0 : new_diff;
+    m_continuous_adjustment_time_point.lower = expected_time;
+}
+
+Result StandardSteadyClockCore::GetCurrentTimePointImpl(SteadyClockTimePoint& out_time_point) {
+    auto current_time_ns = GetCurrentRawTimePointImpl();
+    auto current_time_s =
+        std::chrono::duration_cast<std::chrono::seconds>(std::chrono::nanoseconds(current_time_ns));
+    out_time_point.time_point = current_time_s.count();
+    out_time_point.clock_source_id = m_clock_source_id;
+    R_SUCCEED();
+}
+
+s64 StandardSteadyClockCore::GetCurrentRawTimePointImpl() {
+    std::scoped_lock l{m_mutex};
+    auto ticks{static_cast<s64>(m_system.CoreTiming().GetClockTicks())};
+    auto current_time_ns = m_rtc_offset + ConvertToTimeSpan(ticks).count();
+    auto time_point = std::max<s64>(current_time_ns, m_cached_time_point);
+    m_cached_time_point = time_point;
+    return time_point;
+}
+
+s64 StandardSteadyClockCore::GetTestOffsetImpl() const {
+    return m_test_offset;
+}
+
+void StandardSteadyClockCore::SetTestOffsetImpl(s64 offset) {
+    m_test_offset = offset;
+}
+
+s64 StandardSteadyClockCore::GetInternalOffsetImpl() const {
+    return m_internal_offset;
+}
+
+void StandardSteadyClockCore::SetInternalOffsetImpl(s64 offset) {
+    m_internal_offset = offset;
+}
+
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/clocks/standard_steady_clock_core.h
+++ b/src/core/hle/service/psc/time/clocks/standard_steady_clock_core.h
@@ -0,0 +1,54 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <mutex>
+
+#include "core/hle/service/psc/time/clocks/steady_clock_core.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::PSC::Time {
+class StandardSteadyClockCore : public SteadyClockCore {
+public:
+    explicit StandardSteadyClockCore(Core::System& system) : m_system{system} {}
+    ~StandardSteadyClockCore() override = default;
+
+    void Initialize(ClockSourceId clock_source_id, s64 rtc_offset, s64 internal_offset,
+                    s64 test_offset, bool is_rtc_reset_detected);
+
+    void SetRtcOffset(s64 offset);
+    void SetContinuousAdjustment(ClockSourceId clock_source_id, s64 time);
+    void GetContinuousAdjustment(ContinuousAdjustmentTimePoint& out_time_point) const;
+    void UpdateContinuousAdjustmentTime(s64 time);
+
+    Result GetCurrentTimePointImpl(SteadyClockTimePoint& out_time_point) override;
+    s64 GetCurrentRawTimePointImpl() override;
+    s64 GetTestOffsetImpl() const override;
+    void SetTestOffsetImpl(s64 offset) override;
+    s64 GetInternalOffsetImpl() const override;
+    void SetInternalOffsetImpl(s64 offset) override;
+
+    Result GetRtcValueImpl(s64& out_value) override {
+        R_RETURN(ResultNotImplemented);
+    }
+
+    Result GetSetupResultValueImpl() override {
+        R_SUCCEED();
+    }
+
+private:
+    Core::System& m_system;
+
+    std::mutex m_mutex;
+    s64 m_test_offset{};
+    s64 m_internal_offset{};
+    ClockSourceId m_clock_source_id{};
+    s64 m_rtc_offset{};
+    s64 m_cached_time_point{};
+    ContinuousAdjustmentTimePoint m_continuous_adjustment_time_point{};
+};
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/clocks/standard_user_system_clock_core.cpp
+++ b/src/core/hle/service/psc/time/clocks/standard_user_system_clock_core.cpp
@@ -0,0 +1,63 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/core.h"
+#include "core/hle/service/psc/time/clocks/standard_user_system_clock_core.h"
+
+namespace Service::PSC::Time {
+
+StandardUserSystemClockCore::StandardUserSystemClockCore(
+    Core::System& system, StandardLocalSystemClockCore& local_clock,
+    StandardNetworkSystemClockCore& network_clock)
+    : SystemClockCore{local_clock.GetSteadyClock()}, m_system{system},
+      m_ctx{m_system, "Psc:StandardUserSystemClockCore"}, m_local_system_clock{local_clock},
+      m_network_system_clock{network_clock}, m_event{m_ctx.CreateEvent(
+                                                 "Psc:StandardUserSystemClockCore:Event")} {}
+
+StandardUserSystemClockCore::~StandardUserSystemClockCore() {
+    m_ctx.CloseEvent(m_event);
+}
+
+Result StandardUserSystemClockCore::SetAutomaticCorrection(bool automatic_correction) {
+    R_SUCCEED_IF(m_automatic_correction == automatic_correction);
+    R_SUCCEED_IF(!m_network_system_clock.CheckClockSourceMatches());
+
+    SystemClockContext context{};
+    R_TRY(m_network_system_clock.GetContext(context));
+    R_TRY(m_local_system_clock.SetContextAndWrite(context));
+
+    m_automatic_correction = automatic_correction;
+    R_SUCCEED();
+}
+
+Result StandardUserSystemClockCore::GetContext(SystemClockContext& out_context) const {
+    if (!m_automatic_correction) {
+        R_RETURN(m_local_system_clock.GetContext(out_context));
+    }
+
+    if (!m_network_system_clock.CheckClockSourceMatches()) {
+        R_RETURN(m_local_system_clock.GetContext(out_context));
+    }
+
+    SystemClockContext context{};
+    R_TRY(m_network_system_clock.GetContext(context));
+    R_TRY(m_local_system_clock.SetContextAndWrite(context));
+
+    R_RETURN(m_local_system_clock.GetContext(out_context));
+}
+
+Result StandardUserSystemClockCore::SetContext(SystemClockContext& context) {
+    R_RETURN(ResultNotImplemented);
+}
+
+Result StandardUserSystemClockCore::GetTimePoint(SteadyClockTimePoint& out_time_point) {
+    out_time_point = m_time_point;
+    R_SUCCEED();
+}
+
+void StandardUserSystemClockCore::SetTimePointAndSignal(SteadyClockTimePoint& time_point) {
+    m_time_point = time_point;
+    m_event->Signal();
+}
+
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/clocks/standard_user_system_clock_core.h
+++ b/src/core/hle/service/psc/time/clocks/standard_user_system_clock_core.h
@@ -0,0 +1,55 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/kernel/k_event.h"
+#include "core/hle/result.h"
+#include "core/hle/service/kernel_helpers.h"
+#include "core/hle/service/psc/time/clocks/context_writers.h"
+#include "core/hle/service/psc/time/clocks/standard_local_system_clock_core.h"
+#include "core/hle/service/psc/time/clocks/standard_network_system_clock_core.h"
+#include "core/hle/service/psc/time/clocks/steady_clock_core.h"
+#include "core/hle/service/psc/time/clocks/system_clock_core.h"
+#include "core/hle/service/psc/time/common.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::PSC::Time {
+
+class StandardUserSystemClockCore : public SystemClockCore {
+public:
+    explicit StandardUserSystemClockCore(Core::System& system,
+                                         StandardLocalSystemClockCore& local_clock,
+                                         StandardNetworkSystemClockCore& network_clock);
+    ~StandardUserSystemClockCore() override;
+
+    Kernel::KEvent& GetEvent() {
+        return *m_event;
+    }
+
+    bool GetAutomaticCorrection() const {
+        return m_automatic_correction;
+    }
+    Result SetAutomaticCorrection(bool automatic_correction);
+
+    Result GetContext(SystemClockContext& out_context) const override;
+    Result SetContext(SystemClockContext& context) override;
+
+    Result GetTimePoint(SteadyClockTimePoint& out_time_point);
+    void SetTimePointAndSignal(SteadyClockTimePoint& time_point);
+
+private:
+    Core::System& m_system;
+    KernelHelpers::ServiceContext m_ctx;
+
+    bool m_automatic_correction{};
+    StandardLocalSystemClockCore& m_local_system_clock;
+    StandardNetworkSystemClockCore& m_network_system_clock;
+    SteadyClockTimePoint m_time_point{};
+    Kernel::KEvent* m_event{};
+};
+
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/clocks/steady_clock_core.h
+++ b/src/core/hle/service/psc/time/clocks/steady_clock_core.h
@@ -0,0 +1,81 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <chrono>
+
+#include "core/hle/result.h"
+#include "core/hle/service/psc/time/common.h"
+
+namespace Service::PSC::Time {
+
+class SteadyClockCore {
+public:
+    SteadyClockCore() = default;
+    virtual ~SteadyClockCore() = default;
+
+    void SetInitialized() {
+        m_initialized = true;
+    }
+
+    bool IsInitialized() const {
+        return m_initialized;
+    }
+
+    void SetResetDetected() {
+        m_reset_detected = true;
+    }
+
+    bool IsResetDetected() const {
+        return m_reset_detected;
+    }
+
+    Result GetCurrentTimePoint(SteadyClockTimePoint& out_time_point) {
+        R_TRY(GetCurrentTimePointImpl(out_time_point));
+
+        auto one_second_ns{
+            std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::seconds(1)).count()};
+        out_time_point.time_point += GetTestOffsetImpl() / one_second_ns;
+        out_time_point.time_point += GetInternalOffsetImpl() / one_second_ns;
+        R_SUCCEED();
+    }
+
+    s64 GetTestOffset() const {
+        return GetTestOffsetImpl();
+    }
+
+    void SetTestOffset(s64 offset) {
+        SetTestOffsetImpl(offset);
+    }
+
+    s64 GetInternalOffset() const {
+        return GetInternalOffsetImpl();
+    }
+
+    s64 GetRawTime() {
+        return GetCurrentRawTimePointImpl() + GetTestOffsetImpl() + GetInternalOffsetImpl();
+    }
+
+    Result GetRtcValue(s64& out_value) {
+        R_RETURN(GetRtcValueImpl(out_value));
+    }
+
+    Result GetSetupResultValue() {
+        R_RETURN(GetSetupResultValueImpl());
+    }
+
+private:
+    virtual Result GetCurrentTimePointImpl(SteadyClockTimePoint& out_time_point) = 0;
+    virtual s64 GetCurrentRawTimePointImpl() = 0;
+    virtual s64 GetTestOffsetImpl() const = 0;
+    virtual void SetTestOffsetImpl(s64 offset) = 0;
+    virtual s64 GetInternalOffsetImpl() const = 0;
+    virtual void SetInternalOffsetImpl(s64 offset) = 0;
+    virtual Result GetRtcValueImpl(s64& out_value) = 0;
+    virtual Result GetSetupResultValueImpl() = 0;
+
+    bool m_initialized{};
+    bool m_reset_detected{};
+};
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/clocks/system_clock_core.cpp
+++ b/src/core/hle/service/psc/time/clocks/system_clock_core.cpp
@@ -0,0 +1,75 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/psc/time/clocks/context_writers.h"
+#include "core/hle/service/psc/time/clocks/system_clock_core.h"
+
+namespace Service::PSC::Time {
+
+bool SystemClockCore::CheckClockSourceMatches() {
+    SystemClockContext context{};
+    if (GetContext(context) != ResultSuccess) {
+        return false;
+    }
+
+    SteadyClockTimePoint time_point{};
+    if (m_steady_clock.GetCurrentTimePoint(time_point) != ResultSuccess) {
+        return false;
+    }
+
+    return context.steady_time_point.IdMatches(time_point);
+}
+
+Result SystemClockCore::GetCurrentTime(s64* out_time) const {
+    R_UNLESS(out_time != nullptr, ResultInvalidArgument);
+
+    SystemClockContext context{};
+    SteadyClockTimePoint time_point{};
+
+    R_TRY(m_steady_clock.GetCurrentTimePoint(time_point));
+    R_TRY(GetContext(context));
+
+    R_UNLESS(context.steady_time_point.IdMatches(time_point), ResultClockMismatch);
+
+    *out_time = context.offset + time_point.time_point;
+    R_SUCCEED();
+}
+
+Result SystemClockCore::SetCurrentTime(s64 time) {
+    SteadyClockTimePoint time_point{};
+    R_TRY(m_steady_clock.GetCurrentTimePoint(time_point));
+
+    SystemClockContext context{
+        .offset = time - time_point.time_point,
+        .steady_time_point = time_point,
+    };
+    R_RETURN(SetContextAndWrite(context));
+}
+
+Result SystemClockCore::GetContext(SystemClockContext& out_context) const {
+    out_context = m_context;
+    R_SUCCEED();
+}
+
+Result SystemClockCore::SetContext(SystemClockContext& context) {
+    m_context = context;
+    R_SUCCEED();
+}
+
+Result SystemClockCore::SetContextAndWrite(SystemClockContext& context) {
+    R_TRY(SetContext(context));
+
+    if (m_context_writer) {
+        R_RETURN(m_context_writer->Write(context));
+    }
+
+    R_SUCCEED();
+}
+
+void SystemClockCore::LinkOperationEvent(OperationEvent& operation_event) {
+    if (m_context_writer) {
+        m_context_writer->Link(operation_event);
+    }
+}
+
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/clocks/system_clock_core.h
+++ b/src/core/hle/service/psc/time/clocks/system_clock_core.h
@@ -0,0 +1,55 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/result.h"
+#include "core/hle/service/psc/time/clocks/steady_clock_core.h"
+#include "core/hle/service/psc/time/common.h"
+
+namespace Service::PSC::Time {
+class ContextWriter;
+
+class SystemClockCore {
+public:
+    explicit SystemClockCore(SteadyClockCore& steady_clock) : m_steady_clock{steady_clock} {}
+    virtual ~SystemClockCore() = default;
+
+    SteadyClockCore& GetSteadyClock() {
+        return m_steady_clock;
+    }
+
+    bool IsInitialized() const {
+        return m_initialized;
+    }
+
+    void SetInitialized() {
+        m_initialized = true;
+    }
+
+    void SetContextWriter(ContextWriter& context_writer) {
+        m_context_writer = &context_writer;
+    }
+
+    bool CheckClockSourceMatches();
+
+    Result GetCurrentTime(s64* out_time) const;
+    Result SetCurrentTime(s64 time);
+
+    Result GetCurrentTimePoint(SteadyClockTimePoint& out_time_point) {
+        R_RETURN(m_steady_clock.GetCurrentTimePoint(out_time_point));
+    }
+
+    virtual Result GetContext(SystemClockContext& out_context) const;
+    virtual Result SetContext(SystemClockContext& context);
+    Result SetContextAndWrite(SystemClockContext& context);
+
+    void LinkOperationEvent(OperationEvent& operation_event);
+
+private:
+    bool m_initialized{};
+    ContextWriter* m_context_writer{};
+    SteadyClockCore& m_steady_clock;
+    SystemClockContext m_context{};
+};
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/clocks/tick_based_steady_clock_core.cpp
+++ b/src/core/hle/service/psc/time/clocks/tick_based_steady_clock_core.cpp
@@ -0,0 +1,43 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <chrono>
+
+#include "core/core.h"
+#include "core/core_timing.h"
+#include "core/hle/service/psc/time/clocks/tick_based_steady_clock_core.h"
+
+namespace Service::PSC::Time {
+
+Result TickBasedSteadyClockCore::GetCurrentTimePointImpl(SteadyClockTimePoint& out_time_point) {
+    auto ticks{m_system.CoreTiming().GetClockTicks()};
+    auto current_time_s =
+        std::chrono::duration_cast<std::chrono::seconds>(ConvertToTimeSpan(ticks)).count();
+    out_time_point.time_point = current_time_s;
+    out_time_point.clock_source_id = m_clock_source_id;
+    R_SUCCEED();
+}
+
+s64 TickBasedSteadyClockCore::GetCurrentRawTimePointImpl() {
+    SteadyClockTimePoint time_point{};
+    if (GetCurrentTimePointImpl(time_point) != ResultSuccess) {
+        LOG_ERROR(Service_Time, "Failed to GetCurrentTimePoint!");
+    }
+    return std::chrono::duration_cast<std::chrono::nanoseconds>(
+               std::chrono::seconds(time_point.time_point))
+        .count();
+}
+
+s64 TickBasedSteadyClockCore::GetTestOffsetImpl() const {
+    return 0;
+}
+
+void TickBasedSteadyClockCore::SetTestOffsetImpl(s64 offset) {}
+
+s64 TickBasedSteadyClockCore::GetInternalOffsetImpl() const {
+    return 0;
+}
+
+void TickBasedSteadyClockCore::SetInternalOffsetImpl(s64 offset) {}
+
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/clocks/tick_based_steady_clock_core.h
+++ b/src/core/hle/service/psc/time/clocks/tick_based_steady_clock_core.h
@@ -0,0 +1,41 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <mutex>
+
+#include "common/uuid.h"
+#include "core/hle/service/psc/time/clocks/steady_clock_core.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::PSC::Time {
+class TickBasedSteadyClockCore : public SteadyClockCore {
+public:
+    explicit TickBasedSteadyClockCore(Core::System& system) : m_system{system} {}
+    ~TickBasedSteadyClockCore() override = default;
+
+    Result GetCurrentTimePointImpl(SteadyClockTimePoint& out_time_point) override;
+    s64 GetCurrentRawTimePointImpl() override;
+    s64 GetTestOffsetImpl() const override;
+    void SetTestOffsetImpl(s64 offset) override;
+    s64 GetInternalOffsetImpl() const override;
+    void SetInternalOffsetImpl(s64 offset) override;
+
+    Result GetRtcValueImpl(s64& out_value) override {
+        R_RETURN(ResultNotImplemented);
+    }
+
+    Result GetSetupResultValueImpl() override {
+        R_SUCCEED();
+    }
+
+private:
+    Core::System& m_system;
+
+    ClockSourceId m_clock_source_id{Common::UUID::MakeRandom()};
+};
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/common.cpp
+++ b/src/core/hle/service/psc/time/common.cpp
@@ -0,0 +1,16 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/core.h"
+#include "core/hle/service/psc/time/common.h"
+
+namespace Service::PSC::Time {
+OperationEvent::OperationEvent(Core::System& system)
+    : m_ctx{system, "Time:OperationEvent"}, m_event{
+                                                m_ctx.CreateEvent("Time:OperationEvent:Event")} {}
+
+OperationEvent::~OperationEvent() {
+    m_ctx.CloseEvent(m_event);
+}
+
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/common.h
+++ b/src/core/hle/service/psc/time/common.h
@@ -0,0 +1,168 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <array>
+#include <chrono>
+
+#include "common/common_types.h"
+#include "common/intrusive_list.h"
+#include "common/uuid.h"
+#include "common/wall_clock.h"
+#include "core/hle/kernel/k_event.h"
+#include "core/hle/service/kernel_helpers.h"
+#include "core/hle/service/psc/time/errors.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::PSC::Time {
+using ClockSourceId = Common::UUID;
+
+struct SteadyClockTimePoint {
+    constexpr bool IdMatches(SteadyClockTimePoint& other) {
+        return clock_source_id == other.clock_source_id;
+    }
+    bool operator==(const SteadyClockTimePoint& other) const = default;
+
+    s64 time_point;
+    ClockSourceId clock_source_id;
+};
+static_assert(sizeof(SteadyClockTimePoint) == 0x18, "SteadyClockTimePoint has the wrong size!");
+static_assert(std::is_trivial_v<ClockSourceId>);
+
+struct SystemClockContext {
+    bool operator==(const SystemClockContext& other) const = default;
+
+    s64 offset;
+    SteadyClockTimePoint steady_time_point;
+};
+static_assert(sizeof(SystemClockContext) == 0x20, "SystemClockContext has the wrong size!");
+static_assert(std::is_trivial_v<SystemClockContext>);
+
+enum class TimeType : u8 {
+    UserSystemClock,
+    NetworkSystemClock,
+    LocalSystemClock,
+};
+
+struct CalendarTime {
+    s16 year;
+    s8 month;
+    s8 day;
+    s8 hour;
+    s8 minute;
+    s8 second;
+};
+static_assert(sizeof(CalendarTime) == 0x8, "CalendarTime has the wrong size!");
+
+struct CalendarAdditionalInfo {
+    s32 day_of_week;
+    s32 day_of_year;
+    std::array<char, 8> name;
+    s32 is_dst;
+    s32 ut_offset;
+};
+static_assert(sizeof(CalendarAdditionalInfo) == 0x18, "CalendarAdditionalInfo has the wrong size!");
+
+struct LocationName {
+    std::array<char, 36> name;
+};
+static_assert(sizeof(LocationName) == 0x24, "LocationName has the wrong size!");
+
+struct RuleVersion {
+    std::array<char, 16> version;
+};
+static_assert(sizeof(RuleVersion) == 0x10, "RuleVersion has the wrong size!");
+
+struct ClockSnapshot {
+    SystemClockContext user_context;
+    SystemClockContext network_context;
+    s64 user_time;
+    s64 network_time;
+    CalendarTime user_calendar_time;
+    CalendarTime network_calendar_time;
+    CalendarAdditionalInfo user_calendar_additional_time;
+    CalendarAdditionalInfo network_calendar_additional_time;
+    SteadyClockTimePoint steady_clock_time_point;
+    LocationName location_name;
+    bool is_automatic_correction_enabled;
+    TimeType type;
+    u16 unk_CE;
+};
+static_assert(sizeof(ClockSnapshot) == 0xD0, "ClockSnapshot has the wrong size!");
+static_assert(std::is_trivial_v<ClockSnapshot>);
+
+struct ContinuousAdjustmentTimePoint {
+    s64 rtc_offset;
+    s64 diff_scale;
+    s64 shift_amount;
+    s64 lower;
+    s64 upper;
+    ClockSourceId clock_source_id;
+};
+static_assert(sizeof(ContinuousAdjustmentTimePoint) == 0x38,
+              "ContinuousAdjustmentTimePoint has the wrong size!");
+static_assert(std::is_trivial_v<ContinuousAdjustmentTimePoint>);
+
+struct AlarmInfo {
+    s64 alert_time;
+    u32 priority;
+};
+static_assert(sizeof(AlarmInfo) == 0x10, "AlarmInfo has the wrong size!");
+
+struct StaticServiceSetupInfo {
+    bool can_write_local_clock;
+    bool can_write_user_clock;
+    bool can_write_network_clock;
+    bool can_write_timezone_device_location;
+    bool can_write_steady_clock;
+    bool can_write_uninitialized_clock;
+};
+static_assert(sizeof(StaticServiceSetupInfo) == 0x6, "StaticServiceSetupInfo has the wrong size!");
+
+struct OperationEvent : public Common::IntrusiveListBaseNode<OperationEvent> {
+    using OperationEventList = Common::IntrusiveListBaseTraits<OperationEvent>::ListType;
+
+    OperationEvent(Core::System& system);
+    ~OperationEvent();
+
+    KernelHelpers::ServiceContext m_ctx;
+    Kernel::KEvent* m_event{};
+};
+
+constexpr inline std::chrono::nanoseconds ConvertToTimeSpan(s64 ticks) {
+    constexpr auto one_second_ns{
+        std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::seconds(1)).count()};
+
+    constexpr s64 max{Common::WallClock::CNTFRQ *
+                      (std::numeric_limits<s64>::max() / one_second_ns)};
+
+    if (ticks > max) {
+        return std::chrono::nanoseconds(std::numeric_limits<s64>::max());
+    } else if (ticks < -max) {
+        return std::chrono::nanoseconds(std::numeric_limits<s64>::min());
+    }
+
+    auto a{ticks / Common::WallClock::CNTFRQ * one_second_ns};
+    auto b{((ticks % Common::WallClock::CNTFRQ) * one_second_ns) / Common::WallClock::CNTFRQ};
+
+    return std::chrono::nanoseconds(a + b);
+}
+
+constexpr inline Result GetSpanBetweenTimePoints(s64* out_seconds, SteadyClockTimePoint& a,
+                                                 SteadyClockTimePoint& b) {
+    R_UNLESS(out_seconds, ResultInvalidArgument);
+    R_UNLESS(a.IdMatches(b), ResultInvalidArgument);
+    R_UNLESS(a.time_point >= 0 || b.time_point <= a.time_point + std::numeric_limits<s64>::max(),
+             ResultOverflow);
+    R_UNLESS(a.time_point < 0 || b.time_point >= a.time_point + std::numeric_limits<s64>::min(),
+             ResultOverflow);
+
+    *out_seconds = b.time_point - a.time_point;
+    R_SUCCEED();
+}
+
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/errors.h
+++ b/src/core/hle/service/psc/time/errors.h
@@ -0,0 +1,24 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/result.h"
+
+namespace Service::PSC::Time {
+
+constexpr Result ResultPermissionDenied{ErrorModule::Time, 1};
+constexpr Result ResultClockMismatch{ErrorModule::Time, 102};
+constexpr Result ResultClockUninitialized{ErrorModule::Time, 103};
+constexpr Result ResultTimeNotFound{ErrorModule::Time, 200};
+constexpr Result ResultOverflow{ErrorModule::Time, 201};
+constexpr Result ResultFailed{ErrorModule::Time, 801};
+constexpr Result ResultInvalidArgument{ErrorModule::Time, 901};
+constexpr Result ResultTimeZoneOutOfRange{ErrorModule::Time, 902};
+constexpr Result ResultTimeZoneParseFailed{ErrorModule::Time, 903};
+constexpr Result ResultRtcTimeout{ErrorModule::Time, 988};
+constexpr Result ResultTimeZoneNotFound{ErrorModule::Time, 989};
+constexpr Result ResultNotImplemented{ErrorModule::Time, 990};
+constexpr Result ResultAlarmNotRegistered{ErrorModule::Time, 1502};
+
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/manager.h
+++ b/src/core/hle/service/psc/time/manager.h
@@ -0,0 +1,56 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/service/psc/time/alarms.h"
+#include "core/hle/service/psc/time/clocks/context_writers.h"
+#include "core/hle/service/psc/time/clocks/ephemeral_network_system_clock_core.h"
+#include "core/hle/service/psc/time/clocks/standard_local_system_clock_core.h"
+#include "core/hle/service/psc/time/clocks/standard_network_system_clock_core.h"
+#include "core/hle/service/psc/time/clocks/standard_steady_clock_core.h"
+#include "core/hle/service/psc/time/clocks/standard_user_system_clock_core.h"
+#include "core/hle/service/psc/time/clocks/tick_based_steady_clock_core.h"
+#include "core/hle/service/psc/time/power_state_request_manager.h"
+#include "core/hle/service/psc/time/shared_memory.h"
+#include "core/hle/service/psc/time/time_zone.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::PSC::Time {
+class TimeManager {
+public:
+    explicit TimeManager(Core::System& system)
+        : m_system{system}, m_standard_steady_clock{system}, m_tick_based_steady_clock{m_system},
+          m_standard_local_system_clock{m_standard_steady_clock},
+          m_standard_network_system_clock{m_standard_steady_clock},
+          m_standard_user_system_clock{m_system, m_standard_local_system_clock,
+                                       m_standard_network_system_clock},
+          m_ephemeral_network_clock{m_tick_based_steady_clock}, m_shared_memory{m_system},
+          m_power_state_request_manager{m_system}, m_alarms{m_system, m_standard_steady_clock,
+                                                            m_power_state_request_manager},
+          m_local_system_clock_context_writer{m_system, m_shared_memory},
+          m_network_system_clock_context_writer{m_system, m_shared_memory,
+                                                m_standard_user_system_clock},
+          m_ephemeral_network_clock_context_writer{m_system} {}
+
+    Core::System& m_system;
+
+    StandardSteadyClockCore m_standard_steady_clock;
+    TickBasedSteadyClockCore m_tick_based_steady_clock;
+    StandardLocalSystemClockCore m_standard_local_system_clock;
+    StandardNetworkSystemClockCore m_standard_network_system_clock;
+    StandardUserSystemClockCore m_standard_user_system_clock;
+    EphemeralNetworkSystemClockCore m_ephemeral_network_clock;
+    TimeZone m_time_zone;
+    SharedMemory m_shared_memory;
+    PowerStateRequestManager m_power_state_request_manager;
+    Alarms m_alarms;
+    LocalSystemClockContextWriter m_local_system_clock_context_writer;
+    NetworkSystemClockContextWriter m_network_system_clock_context_writer;
+    EphemeralNetworkSystemClockContextWriter m_ephemeral_network_clock_context_writer;
+};
+
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/power_state_request_manager.cpp
+++ b/src/core/hle/service/psc/time/power_state_request_manager.cpp
@@ -0,0 +1,50 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/core.h"
+#include "core/hle/service/psc/time/power_state_request_manager.h"
+
+namespace Service::PSC::Time {
+
+PowerStateRequestManager::PowerStateRequestManager(Core::System& system)
+    : m_system{system}, m_ctx{system, "Psc:PowerStateRequestManager"},
+      m_event{m_ctx.CreateEvent("Psc:PowerStateRequestManager:Event")} {}
+
+PowerStateRequestManager::~PowerStateRequestManager() {
+    m_ctx.CloseEvent(m_event);
+}
+
+void PowerStateRequestManager::UpdatePendingPowerStateRequestPriority(u32 priority) {
+    std::scoped_lock l{m_mutex};
+    if (m_has_pending_request) {
+        m_pending_request_priority = std::max(m_pending_request_priority, priority);
+    } else {
+        m_pending_request_priority = priority;
+        m_has_pending_request = true;
+    }
+}
+
+void PowerStateRequestManager::SignalPowerStateRequestAvailability() {
+    std::scoped_lock l{m_mutex};
+    if (m_has_pending_request) {
+        if (!m_has_available_request) {
+            m_has_available_request = true;
+        }
+        m_has_pending_request = false;
+        m_available_request_priority = m_pending_request_priority;
+        m_event->Signal();
+    }
+}
+
+bool PowerStateRequestManager::GetAndClearPowerStateRequest(u32& out_priority) {
+    std::scoped_lock l{m_mutex};
+    auto had_request{m_has_available_request};
+    if (m_has_available_request) {
+        out_priority = m_available_request_priority;
+        m_has_available_request = false;
+        m_event->Clear();
+    }
+    return had_request;
+}
+
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/power_state_request_manager.h
+++ b/src/core/hle/service/psc/time/power_state_request_manager.h
@@ -0,0 +1,42 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <mutex>
+
+#include "core/hle/kernel/k_event.h"
+#include "core/hle/service/kernel_helpers.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::PSC::Time {
+
+class PowerStateRequestManager {
+public:
+    explicit PowerStateRequestManager(Core::System& system);
+    ~PowerStateRequestManager();
+
+    Kernel::KReadableEvent& GetReadableEvent() {
+        return m_event->GetReadableEvent();
+    }
+
+    void UpdatePendingPowerStateRequestPriority(u32 priority);
+    void SignalPowerStateRequestAvailability();
+    bool GetAndClearPowerStateRequest(u32& out_priority);
+
+private:
+    Core::System& m_system;
+    KernelHelpers::ServiceContext m_ctx;
+
+    Kernel::KEvent* m_event{};
+    bool m_has_pending_request{};
+    u32 m_pending_request_priority{};
+    bool m_has_available_request{};
+    u32 m_available_request_priority{};
+    std::mutex m_mutex;
+};
+
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/power_state_service.cpp
+++ b/src/core/hle/service/psc/time/power_state_service.cpp
@@ -0,0 +1,49 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/psc/time/power_state_service.h"
+
+namespace Service::PSC::Time {
+
+IPowerStateRequestHandler::IPowerStateRequestHandler(
+    Core::System& system_, PowerStateRequestManager& power_state_request_manager)
+    : ServiceFramework{system_, "time:p"}, m_system{system}, m_power_state_request_manager{
+                                                                 power_state_request_manager} {
+    // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, &IPowerStateRequestHandler::GetPowerStateRequestEventReadableHandle, "GetPowerStateRequestEventReadableHandle"},
+            {1, &IPowerStateRequestHandler::GetAndClearPowerStateRequest, "GetAndClearPowerStateRequest"},
+        };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+void IPowerStateRequestHandler::GetPowerStateRequestEventReadableHandle(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::ResponseBuilder rb{ctx, 2, 1};
+    rb.Push(ResultSuccess);
+    rb.PushCopyObjects(m_power_state_request_manager.GetReadableEvent());
+}
+
+void IPowerStateRequestHandler::GetAndClearPowerStateRequest(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    u32 priority{};
+    auto cleared = m_power_state_request_manager.GetAndClearPowerStateRequest(priority);
+
+    if (cleared) {
+        IPC::ResponseBuilder rb{ctx, 4};
+        rb.Push(ResultSuccess);
+        rb.Push(priority);
+        rb.Push(cleared);
+        return;
+    }
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(ResultSuccess);
+    rb.Push(cleared);
+}
+
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/power_state_service.h
+++ b/src/core/hle/service/psc/time/power_state_service.h
@@ -0,0 +1,32 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/service/ipc_helpers.h"
+#include "core/hle/service/psc/time/power_state_request_manager.h"
+#include "core/hle/service/server_manager.h"
+#include "core/hle/service/service.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::PSC::Time {
+
+class IPowerStateRequestHandler final : public ServiceFramework<IPowerStateRequestHandler> {
+public:
+    explicit IPowerStateRequestHandler(Core::System& system,
+                                       PowerStateRequestManager& power_state_request_manager);
+
+    ~IPowerStateRequestHandler() override = default;
+
+private:
+    void GetPowerStateRequestEventReadableHandle(HLERequestContext& ctx);
+    void GetAndClearPowerStateRequest(HLERequestContext& ctx);
+
+    Core::System& m_system;
+    PowerStateRequestManager& m_power_state_request_manager;
+};
+
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/service_manager.cpp
+++ b/src/core/hle/service/psc/time/service_manager.cpp
@@ -0,0 +1,494 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/core.h"
+#include "core/core_timing.h"
+#include "core/hle/service/psc/time/power_state_service.h"
+#include "core/hle/service/psc/time/service_manager.h"
+#include "core/hle/service/psc/time/static.h"
+
+namespace Service::PSC::Time {
+
+ServiceManager::ServiceManager(Core::System& system_, std::shared_ptr<TimeManager> time,
+                               ServerManager* server_manager)
+    : ServiceFramework{system_, "time:m"}, m_system{system}, m_time{std::move(time)},
+      m_server_manager{*server_manager},
+      m_local_system_clock{m_time->m_standard_local_system_clock},
+      m_user_system_clock{m_time->m_standard_user_system_clock},
+      m_network_system_clock{m_time->m_standard_network_system_clock},
+      m_steady_clock{m_time->m_standard_steady_clock}, m_time_zone{m_time->m_time_zone},
+      m_ephemeral_network_clock{m_time->m_ephemeral_network_clock},
+      m_shared_memory{m_time->m_shared_memory}, m_alarms{m_time->m_alarms},
+      m_local_system_context_writer{m_time->m_local_system_clock_context_writer},
+      m_network_system_context_writer{m_time->m_network_system_clock_context_writer},
+      m_ephemeral_system_context_writer{m_time->m_ephemeral_network_clock_context_writer},
+      m_local_operation{m_system}, m_network_operation{m_system}, m_ephemeral_operation{m_system} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0,   &ServiceManager::Handle_GetStaticServiceAsUser, "GetStaticServiceAsUser"},
+        {5,   &ServiceManager::Handle_GetStaticServiceAsAdmin, "GetStaticServiceAsAdmin"},
+        {6,   &ServiceManager::Handle_GetStaticServiceAsRepair, "GetStaticServiceAsRepair"},
+        {9,   &ServiceManager::Handle_GetStaticServiceAsServiceManager, "GetStaticServiceAsServiceManager"},
+        {10,  &ServiceManager::Handle_SetupStandardSteadyClockCore, "SetupStandardSteadyClockCore"},
+        {11,  &ServiceManager::Handle_SetupStandardLocalSystemClockCore, "SetupStandardLocalSystemClockCore"},
+        {12,  &ServiceManager::Handle_SetupStandardNetworkSystemClockCore, "SetupStandardNetworkSystemClockCore"},
+        {13,  &ServiceManager::Handle_SetupStandardUserSystemClockCore, "SetupStandardUserSystemClockCore"},
+        {14,  &ServiceManager::Handle_SetupTimeZoneServiceCore, "SetupTimeZoneServiceCore"},
+        {15,  &ServiceManager::Handle_SetupEphemeralNetworkSystemClockCore, "SetupEphemeralNetworkSystemClockCore"},
+        {50,  &ServiceManager::Handle_GetStandardLocalClockOperationEvent, "GetStandardLocalClockOperationEvent"},
+        {51,  &ServiceManager::Handle_GetStandardNetworkClockOperationEventForServiceManager, "GetStandardNetworkClockOperationEventForServiceManager"},
+        {52,  &ServiceManager::Handle_GetEphemeralNetworkClockOperationEventForServiceManager, "GetEphemeralNetworkClockOperationEventForServiceManager"},
+        {60,  &ServiceManager::Handle_GetStandardUserSystemClockAutomaticCorrectionUpdatedEvent, "GetStandardUserSystemClockAutomaticCorrectionUpdatedEvent"},
+        {100, &ServiceManager::Handle_SetStandardSteadyClockBaseTime, "SetStandardSteadyClockBaseTime"},
+        {200, &ServiceManager::Handle_GetClosestAlarmUpdatedEvent, "GetClosestAlarmUpdatedEvent"},
+        {201, &ServiceManager::Handle_CheckAndSignalAlarms, "CheckAndSignalAlarms"},
+        {202, &ServiceManager::Handle_GetClosestAlarmInfo, "GetClosestAlarmInfo "},
+    };
+    // clang-format on
+    RegisterHandlers(functions);
+
+    m_local_system_context_writer.Link(m_local_operation);
+    m_network_system_context_writer.Link(m_network_operation);
+    m_ephemeral_system_context_writer.Link(m_ephemeral_operation);
+}
+
+void ServiceManager::SetupSAndP() {
+    if (!m_is_s_and_p_setup) {
+        m_is_s_and_p_setup = true;
+        m_server_manager.RegisterNamedService(
+            "time:s", std::make_shared<StaticService>(
+                          m_system, StaticServiceSetupInfo{0, 0, 1, 0, 0, 0}, m_time, "time:s"));
+        m_server_manager.RegisterNamedService("time:p",
+                                              std::make_shared<IPowerStateRequestHandler>(
+                                                  m_system, m_time->m_power_state_request_manager));
+    }
+}
+
+void ServiceManager::CheckAndSetupServicesSAndP() {
+    if (m_local_system_clock.IsInitialized() && m_user_system_clock.IsInitialized() &&
+        m_network_system_clock.IsInitialized() && m_steady_clock.IsInitialized() &&
+        m_time_zone.IsInitialized() && m_ephemeral_network_clock.IsInitialized()) {
+        SetupSAndP();
+    }
+}
+
+void ServiceManager::Handle_GetStaticServiceAsUser(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    std::shared_ptr<StaticService> service{};
+    auto res = GetStaticServiceAsUser(service);
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(res);
+    rb.PushIpcInterface<StaticService>(std::move(service));
+}
+
+void ServiceManager::Handle_GetStaticServiceAsAdmin(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    std::shared_ptr<StaticService> service{};
+    auto res = GetStaticServiceAsAdmin(service);
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(res);
+    rb.PushIpcInterface<StaticService>(std::move(service));
+}
+
+void ServiceManager::Handle_GetStaticServiceAsRepair(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    std::shared_ptr<StaticService> service{};
+    auto res = GetStaticServiceAsRepair(service);
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(res);
+    rb.PushIpcInterface<StaticService>(std::move(service));
+}
+
+void ServiceManager::Handle_GetStaticServiceAsServiceManager(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    std::shared_ptr<StaticService> service{};
+    auto res = GetStaticServiceAsServiceManager(service);
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(res);
+    rb.PushIpcInterface<StaticService>(std::move(service));
+}
+
+void ServiceManager::Handle_SetupStandardSteadyClockCore(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    struct Parameters {
+        bool reset_detected;
+        Common::UUID clock_source_id;
+        s64 rtc_offset;
+        s64 internal_offset;
+        s64 test_offset;
+    };
+    static_assert(sizeof(Parameters) == 0x30);
+
+    IPC::RequestParser rp{ctx};
+    auto params{rp.PopRaw<Parameters>()};
+
+    auto res = SetupStandardSteadyClockCore(params.clock_source_id, params.rtc_offset,
+                                            params.internal_offset, params.test_offset,
+                                            params.reset_detected);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void ServiceManager::Handle_SetupStandardLocalSystemClockCore(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto context{rp.PopRaw<SystemClockContext>()};
+    auto time{rp.Pop<s64>()};
+
+    auto res = SetupStandardLocalSystemClockCore(context, time);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void ServiceManager::Handle_SetupStandardNetworkSystemClockCore(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto context{rp.PopRaw<SystemClockContext>()};
+    auto accuracy{rp.Pop<s64>()};
+
+    auto res = SetupStandardNetworkSystemClockCore(context, accuracy);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void ServiceManager::Handle_SetupStandardUserSystemClockCore(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    struct Parameters {
+        bool automatic_correction;
+        SteadyClockTimePoint time_point;
+    };
+    static_assert(sizeof(Parameters) == 0x20);
+
+    IPC::RequestParser rp{ctx};
+    auto params{rp.PopRaw<Parameters>()};
+
+    auto res = SetupStandardUserSystemClockCore(params.time_point, params.automatic_correction);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void ServiceManager::Handle_SetupTimeZoneServiceCore(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    struct Parameters {
+        u32 location_count;
+        LocationName name;
+        SteadyClockTimePoint time_point;
+        RuleVersion rule_version;
+    };
+    static_assert(sizeof(Parameters) == 0x50);
+
+    IPC::RequestParser rp{ctx};
+    auto params{rp.PopRaw<Parameters>()};
+
+    auto rule_buffer{ctx.ReadBuffer()};
+
+    auto res = SetupTimeZoneServiceCore(params.name, params.time_point, params.rule_version,
+                                        params.location_count, rule_buffer);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void ServiceManager::Handle_SetupEphemeralNetworkSystemClockCore(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    auto res = SetupEphemeralNetworkSystemClockCore();
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void ServiceManager::Handle_GetStandardLocalClockOperationEvent(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    Kernel::KEvent* event{};
+    auto res = GetStandardLocalClockOperationEvent(&event);
+
+    IPC::ResponseBuilder rb{ctx, 2, 1};
+    rb.Push(res);
+    rb.PushCopyObjects(event->GetReadableEvent());
+}
+
+void ServiceManager::Handle_GetStandardNetworkClockOperationEventForServiceManager(
+    HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    Kernel::KEvent* event{};
+    auto res = GetStandardNetworkClockOperationEventForServiceManager(&event);
+
+    IPC::ResponseBuilder rb{ctx, 2, 1};
+    rb.Push(res);
+    rb.PushCopyObjects(event);
+}
+
+void ServiceManager::Handle_GetEphemeralNetworkClockOperationEventForServiceManager(
+    HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    Kernel::KEvent* event{};
+    auto res = GetEphemeralNetworkClockOperationEventForServiceManager(&event);
+
+    IPC::ResponseBuilder rb{ctx, 2, 1};
+    rb.Push(res);
+    rb.PushCopyObjects(event);
+}
+
+void ServiceManager::Handle_GetStandardUserSystemClockAutomaticCorrectionUpdatedEvent(
+    HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    Kernel::KEvent* event{};
+    auto res = GetStandardUserSystemClockAutomaticCorrectionUpdatedEvent(&event);
+
+    IPC::ResponseBuilder rb{ctx, 2, 1};
+    rb.Push(res);
+    rb.PushCopyObjects(event);
+}
+
+void ServiceManager::Handle_SetStandardSteadyClockBaseTime(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto base_time{rp.Pop<s64>()};
+
+    auto res = SetStandardSteadyClockBaseTime(base_time);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void ServiceManager::Handle_GetClosestAlarmUpdatedEvent(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    Kernel::KEvent* event{};
+    auto res = GetClosestAlarmUpdatedEvent(&event);
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(res);
+    rb.PushCopyObjects(event->GetReadableEvent());
+}
+
+void ServiceManager::Handle_CheckAndSignalAlarms(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    auto res = CheckAndSignalAlarms();
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void ServiceManager::Handle_GetClosestAlarmInfo(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    AlarmInfo alarm_info{};
+    bool is_valid{};
+    s64 time{};
+    auto res = GetClosestAlarmInfo(is_valid, alarm_info, time);
+
+    struct OutParameters {
+        bool is_valid;
+        AlarmInfo alarm_info;
+        s64 time;
+    };
+    static_assert(sizeof(OutParameters) == 0x20);
+
+    OutParameters out_params{
+        .is_valid = is_valid,
+        .alarm_info = alarm_info,
+        .time = time,
+    };
+
+    IPC::ResponseBuilder rb{ctx, 2 + sizeof(OutParameters) / sizeof(u32)};
+    rb.Push(res);
+    rb.PushRaw<OutParameters>(out_params);
+}
+
+// =============================== Implementations ===========================
+
+Result ServiceManager::GetStaticService(std::shared_ptr<StaticService>& out_service,
+                                        StaticServiceSetupInfo setup_info, const char* name) {
+    out_service = std::make_shared<StaticService>(m_system, setup_info, m_time, name);
+    R_SUCCEED();
+}
+
+Result ServiceManager::GetStaticServiceAsUser(std::shared_ptr<StaticService>& out_service) {
+    R_RETURN(GetStaticService(out_service, StaticServiceSetupInfo{0, 0, 0, 0, 0, 0}, "time:u"));
+}
+
+Result ServiceManager::GetStaticServiceAsAdmin(std::shared_ptr<StaticService>& out_service) {
+    R_RETURN(GetStaticService(out_service, StaticServiceSetupInfo{1, 1, 0, 1, 0, 0}, "time:a"));
+}
+
+Result ServiceManager::GetStaticServiceAsRepair(std::shared_ptr<StaticService>& out_service) {
+    R_RETURN(GetStaticService(out_service, StaticServiceSetupInfo{0, 0, 0, 0, 1, 0}, "time:r"));
+}
+
+Result ServiceManager::GetStaticServiceAsServiceManager(
+    std::shared_ptr<StaticService>& out_service) {
+    R_RETURN(GetStaticService(out_service, StaticServiceSetupInfo{1, 1, 1, 1, 1, 0}, "time:sm"));
+}
+
+Result ServiceManager::SetupStandardSteadyClockCore(Common::UUID& clock_source_id, s64 rtc_offset,
+                                                    s64 internal_offset, s64 test_offset,
+                                                    bool is_rtc_reset_detected) {
+    m_steady_clock.Initialize(clock_source_id, rtc_offset, internal_offset, test_offset,
+                              is_rtc_reset_detected);
+    auto time = m_steady_clock.GetRawTime();
+    auto ticks = m_system.CoreTiming().GetClockTicks();
+    auto boot_time = time - ConvertToTimeSpan(ticks).count();
+    m_shared_memory.SetSteadyClockTimePoint(clock_source_id, boot_time);
+    m_steady_clock.SetContinuousAdjustment(clock_source_id, boot_time);
+
+    ContinuousAdjustmentTimePoint time_point{};
+    m_steady_clock.GetContinuousAdjustment(time_point);
+    m_shared_memory.SetContinuousAdjustment(time_point);
+
+    CheckAndSetupServicesSAndP();
+    R_SUCCEED();
+}
+
+Result ServiceManager::SetupStandardLocalSystemClockCore(SystemClockContext& context, s64 time) {
+    m_local_system_clock.SetContextWriter(m_local_system_context_writer);
+    m_local_system_clock.Initialize(context, time);
+
+    CheckAndSetupServicesSAndP();
+    R_SUCCEED();
+}
+
+Result ServiceManager::SetupStandardNetworkSystemClockCore(SystemClockContext& context,
+                                                           s64 accuracy) {
+    // TODO this is a hack! The network clock should be updated independently, from the ntc service
+    // and maybe elsewhere. We do not do that, so fix the clock to the local clock on first boot
+    // to avoid it being stuck at 0.
+    if (context == Service::PSC::Time::SystemClockContext{}) {
+        m_local_system_clock.GetContext(context);
+    }
+
+    m_network_system_clock.SetContextWriter(m_network_system_context_writer);
+    m_network_system_clock.Initialize(context, accuracy);
+
+    CheckAndSetupServicesSAndP();
+    R_SUCCEED();
+}
+
+Result ServiceManager::SetupStandardUserSystemClockCore(SteadyClockTimePoint& time_point,
+                                                        bool automatic_correction) {
+    // TODO this is a hack! The user clock should be updated independently, from the ntc service
+    // and maybe elsewhere. We do not do that, so fix the clock to the local clock on first boot
+    // to avoid it being stuck at 0.
+    if (time_point == Service::PSC::Time::SteadyClockTimePoint{}) {
+        m_local_system_clock.GetCurrentTimePoint(time_point);
+    }
+
+    m_user_system_clock.SetAutomaticCorrection(automatic_correction);
+    m_user_system_clock.SetTimePointAndSignal(time_point);
+    m_user_system_clock.SetInitialized();
+    m_shared_memory.SetAutomaticCorrection(automatic_correction);
+
+    CheckAndSetupServicesSAndP();
+    R_SUCCEED();
+}
+
+Result ServiceManager::SetupTimeZoneServiceCore(LocationName& name,
+                                                SteadyClockTimePoint& time_point,
+                                                RuleVersion& rule_version, u32 location_count,
+                                                std::span<const u8> rule_buffer) {
+    if (m_time_zone.ParseBinary(name, rule_buffer) != ResultSuccess) {
+        LOG_ERROR(Service_Time, "Failed to parse time zone binary!");
+    }
+
+    m_time_zone.SetTimePoint(time_point);
+    m_time_zone.SetTotalLocationNameCount(location_count);
+    m_time_zone.SetRuleVersion(rule_version);
+    m_time_zone.SetInitialized();
+
+    CheckAndSetupServicesSAndP();
+    R_SUCCEED();
+}
+
+Result ServiceManager::SetupEphemeralNetworkSystemClockCore() {
+    m_ephemeral_network_clock.SetContextWriter(m_ephemeral_system_context_writer);
+    m_ephemeral_network_clock.SetInitialized();
+
+    CheckAndSetupServicesSAndP();
+    R_SUCCEED();
+}
+
+Result ServiceManager::GetStandardLocalClockOperationEvent(Kernel::KEvent** out_event) {
+    *out_event = m_local_operation.m_event;
+    R_SUCCEED();
+}
+
+Result ServiceManager::GetStandardNetworkClockOperationEventForServiceManager(
+    Kernel::KEvent** out_event) {
+    *out_event = m_network_operation.m_event;
+    R_SUCCEED();
+}
+
+Result ServiceManager::GetEphemeralNetworkClockOperationEventForServiceManager(
+    Kernel::KEvent** out_event) {
+    *out_event = m_ephemeral_operation.m_event;
+    R_SUCCEED();
+}
+
+Result ServiceManager::GetStandardUserSystemClockAutomaticCorrectionUpdatedEvent(
+    Kernel::KEvent** out_event) {
+    *out_event = &m_user_system_clock.GetEvent();
+    R_SUCCEED();
+}
+
+Result ServiceManager::SetStandardSteadyClockBaseTime(s64 base_time) {
+    m_steady_clock.SetRtcOffset(base_time);
+    auto time = m_steady_clock.GetRawTime();
+    auto ticks = m_system.CoreTiming().GetClockTicks();
+    auto diff = time - ConvertToTimeSpan(ticks).count();
+    m_shared_memory.UpdateBaseTime(diff);
+    m_steady_clock.UpdateContinuousAdjustmentTime(diff);
+
+    ContinuousAdjustmentTimePoint time_point{};
+    m_steady_clock.GetContinuousAdjustment(time_point);
+    m_shared_memory.SetContinuousAdjustment(time_point);
+    R_SUCCEED();
+}
+
+Result ServiceManager::GetClosestAlarmUpdatedEvent(Kernel::KEvent** out_event) {
+    *out_event = &m_alarms.GetEvent();
+    R_SUCCEED();
+}
+
+Result ServiceManager::CheckAndSignalAlarms() {
+    m_alarms.CheckAndSignal();
+    R_SUCCEED();
+}
+
+Result ServiceManager::GetClosestAlarmInfo(bool& out_is_valid, AlarmInfo& out_info, s64& out_time) {
+    Alarm* alarm{nullptr};
+    out_is_valid = m_alarms.GetClosestAlarm(&alarm);
+    if (out_is_valid) {
+        out_info = {
+            .alert_time = alarm->GetAlertTime(),
+            .priority = alarm->GetPriority(),
+        };
+        out_time = m_alarms.GetRawTime();
+    }
+    R_SUCCEED();
+}
+
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/service_manager.h
+++ b/src/core/hle/service/psc/time/service_manager.h
@@ -0,0 +1,101 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <list>
+#include <memory>
+
+#include "core/hle/service/ipc_helpers.h"
+#include "core/hle/service/psc/time/common.h"
+#include "core/hle/service/psc/time/manager.h"
+#include "core/hle/service/server_manager.h"
+#include "core/hle/service/service.h"
+
+namespace Core {
+class System;
+}
+
+namespace Kernel {
+class KReadableEvent;
+}
+
+namespace Service::PSC::Time {
+class StaticService;
+
+class ServiceManager final : public ServiceFramework<ServiceManager> {
+public:
+    explicit ServiceManager(Core::System& system, std::shared_ptr<TimeManager> time,
+                            ServerManager* server_manager);
+    ~ServiceManager() override = default;
+
+    Result GetStaticServiceAsUser(std::shared_ptr<StaticService>& out_service);
+    Result GetStaticServiceAsAdmin(std::shared_ptr<StaticService>& out_service);
+    Result GetStaticServiceAsRepair(std::shared_ptr<StaticService>& out_service);
+    Result GetStaticServiceAsServiceManager(std::shared_ptr<StaticService>& out_service);
+    Result SetupStandardSteadyClockCore(Common::UUID& clock_source_id, s64 rtc_offset,
+                                        s64 internal_offset, s64 test_offset,
+                                        bool is_rtc_reset_detected);
+    Result SetupStandardLocalSystemClockCore(SystemClockContext& context, s64 time);
+    Result SetupStandardNetworkSystemClockCore(SystemClockContext& context, s64 accuracy);
+    Result SetupStandardUserSystemClockCore(SteadyClockTimePoint& time_point,
+                                            bool automatic_correction);
+    Result SetupTimeZoneServiceCore(LocationName& name, SteadyClockTimePoint& time_point,
+                                    RuleVersion& rule_version, u32 location_count,
+                                    std::span<const u8> rule_buffer);
+    Result SetupEphemeralNetworkSystemClockCore();
+    Result GetStandardLocalClockOperationEvent(Kernel::KEvent** out_event);
+    Result GetStandardNetworkClockOperationEventForServiceManager(Kernel::KEvent** out_event);
+    Result GetEphemeralNetworkClockOperationEventForServiceManager(Kernel::KEvent** out_event);
+    Result GetStandardUserSystemClockAutomaticCorrectionUpdatedEvent(Kernel::KEvent** out_event);
+    Result SetStandardSteadyClockBaseTime(s64 base_time);
+    Result GetClosestAlarmUpdatedEvent(Kernel::KEvent** out_event);
+    Result CheckAndSignalAlarms();
+    Result GetClosestAlarmInfo(bool& out_is_valid, AlarmInfo& out_info, s64& out_time);
+
+private:
+    void CheckAndSetupServicesSAndP();
+    void SetupSAndP();
+    Result GetStaticService(std::shared_ptr<StaticService>& out_service,
+                            StaticServiceSetupInfo setup_info, const char* name);
+
+    void Handle_GetStaticServiceAsUser(HLERequestContext& ctx);
+    void Handle_GetStaticServiceAsAdmin(HLERequestContext& ctx);
+    void Handle_GetStaticServiceAsRepair(HLERequestContext& ctx);
+    void Handle_GetStaticServiceAsServiceManager(HLERequestContext& ctx);
+    void Handle_SetupStandardSteadyClockCore(HLERequestContext& ctx);
+    void Handle_SetupStandardLocalSystemClockCore(HLERequestContext& ctx);
+    void Handle_SetupStandardNetworkSystemClockCore(HLERequestContext& ctx);
+    void Handle_SetupStandardUserSystemClockCore(HLERequestContext& ctx);
+    void Handle_SetupTimeZoneServiceCore(HLERequestContext& ctx);
+    void Handle_SetupEphemeralNetworkSystemClockCore(HLERequestContext& ctx);
+    void Handle_GetStandardLocalClockOperationEvent(HLERequestContext& ctx);
+    void Handle_GetStandardNetworkClockOperationEventForServiceManager(HLERequestContext& ctx);
+    void Handle_GetEphemeralNetworkClockOperationEventForServiceManager(HLERequestContext& ctx);
+    void Handle_GetStandardUserSystemClockAutomaticCorrectionUpdatedEvent(HLERequestContext& ctx);
+    void Handle_SetStandardSteadyClockBaseTime(HLERequestContext& ctx);
+    void Handle_GetClosestAlarmUpdatedEvent(HLERequestContext& ctx);
+    void Handle_CheckAndSignalAlarms(HLERequestContext& ctx);
+    void Handle_GetClosestAlarmInfo(HLERequestContext& ctx);
+
+    Core::System& m_system;
+    std::shared_ptr<TimeManager> m_time;
+    ServerManager& m_server_manager;
+    bool m_is_s_and_p_setup{};
+    StandardLocalSystemClockCore& m_local_system_clock;
+    StandardUserSystemClockCore& m_user_system_clock;
+    StandardNetworkSystemClockCore& m_network_system_clock;
+    StandardSteadyClockCore& m_steady_clock;
+    TimeZone& m_time_zone;
+    EphemeralNetworkSystemClockCore& m_ephemeral_network_clock;
+    SharedMemory& m_shared_memory;
+    Alarms& m_alarms;
+    LocalSystemClockContextWriter& m_local_system_context_writer;
+    NetworkSystemClockContextWriter& m_network_system_context_writer;
+    EphemeralNetworkSystemClockContextWriter& m_ephemeral_system_context_writer;
+    OperationEvent m_local_operation;
+    OperationEvent m_network_operation;
+    OperationEvent m_ephemeral_operation;
+};
+
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/shared_memory.cpp
+++ b/src/core/hle/service/psc/time/shared_memory.cpp
@@ -0,0 +1,84 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/core.h"
+#include "core/hle/kernel/k_shared_memory.h"
+#include "core/hle/service/psc/time/shared_memory.h"
+
+namespace Service::PSC::Time {
+namespace {
+template <typename T>
+constexpr inline T ReadFromLockFreeAtomicType(const LockFreeAtomicType<T>* p) {
+    while (true) {
+        // Get the counter.
+        auto counter = p->m_counter;
+
+        // Get the value.
+        auto value = p->m_value[counter % 2];
+
+        // Fence memory.
+        std::atomic_thread_fence(std::memory_order_acquire);
+
+        // Check that the counter matches.
+        if (counter == p->m_counter) {
+            return value;
+        }
+    }
+}
+
+template <typename T>
+constexpr inline void WriteToLockFreeAtomicType(LockFreeAtomicType<T>* p, const T& value) {
+    // Get the current counter.
+    auto counter = p->m_counter;
+
+    // Increment the counter.
+    ++counter;
+
+    // Store the updated value.
+    p->m_value[counter % 2] = value;
+
+    // Fence memory.
+    std::atomic_thread_fence(std::memory_order_release);
+
+    // Set the updated counter.
+    p->m_counter = counter;
+}
+} // namespace
+
+SharedMemory::SharedMemory(Core::System& system)
+    : m_system{system}, m_k_shared_memory{m_system.Kernel().GetTimeSharedMem()},
+      m_shared_memory_ptr{reinterpret_cast<SharedMemoryStruct*>(m_k_shared_memory.GetPointer())} {
+    std::memset(m_shared_memory_ptr, 0, sizeof(*m_shared_memory_ptr));
+}
+
+void SharedMemory::SetLocalSystemContext(SystemClockContext& context) {
+    WriteToLockFreeAtomicType(&m_shared_memory_ptr->local_system_clock_contexts, context);
+}
+
+void SharedMemory::SetNetworkSystemContext(SystemClockContext& context) {
+    WriteToLockFreeAtomicType(&m_shared_memory_ptr->network_system_clock_contexts, context);
+}
+
+void SharedMemory::SetSteadyClockTimePoint(ClockSourceId clock_source_id, s64 time_point) {
+    WriteToLockFreeAtomicType(&m_shared_memory_ptr->steady_time_points,
+                              {time_point, clock_source_id});
+}
+
+void SharedMemory::SetContinuousAdjustment(ContinuousAdjustmentTimePoint& time_point) {
+    WriteToLockFreeAtomicType(&m_shared_memory_ptr->continuous_adjustment_time_points, time_point);
+}
+
+void SharedMemory::SetAutomaticCorrection(bool automatic_correction) {
+    WriteToLockFreeAtomicType(&m_shared_memory_ptr->automatic_corrections, automatic_correction);
+}
+
+void SharedMemory::UpdateBaseTime(s64 time) {
+    SteadyClockTimePoint time_point{
+        ReadFromLockFreeAtomicType(&m_shared_memory_ptr->steady_time_points)};
+
+    time_point.time_point = time;
+
+    WriteToLockFreeAtomicType(&m_shared_memory_ptr->steady_time_points, time_point);
+}
+
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/shared_memory.h
+++ b/src/core/hle/service/psc/time/shared_memory.h
@@ -0,0 +1,70 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <array>
+
+#include "common/common_types.h"
+#include "core/hle/service/psc/time/common.h"
+
+namespace Core {
+class System;
+}
+
+namespace Kernel {
+class KSharedMemory;
+}
+
+namespace Service::PSC::Time {
+
+template <typename T>
+struct LockFreeAtomicType {
+    u32 m_counter;
+    std::array<T, 2> m_value;
+};
+
+struct SharedMemoryStruct {
+    LockFreeAtomicType<SteadyClockTimePoint> steady_time_points;
+    LockFreeAtomicType<SystemClockContext> local_system_clock_contexts;
+    LockFreeAtomicType<SystemClockContext> network_system_clock_contexts;
+    LockFreeAtomicType<bool> automatic_corrections;
+    LockFreeAtomicType<ContinuousAdjustmentTimePoint> continuous_adjustment_time_points;
+    std::array<char, 0xEB8> pad0148;
+};
+static_assert(offsetof(SharedMemoryStruct, steady_time_points) == 0x0,
+              "steady_time_points are in the wrong place!");
+static_assert(offsetof(SharedMemoryStruct, local_system_clock_contexts) == 0x38,
+              "local_system_clock_contexts are in the wrong place!");
+static_assert(offsetof(SharedMemoryStruct, network_system_clock_contexts) == 0x80,
+              "network_system_clock_contexts are in the wrong place!");
+static_assert(offsetof(SharedMemoryStruct, automatic_corrections) == 0xC8,
+              "automatic_corrections are in the wrong place!");
+static_assert(offsetof(SharedMemoryStruct, continuous_adjustment_time_points) == 0xD0,
+              "continuous_adjustment_time_points are in the wrong place!");
+static_assert(sizeof(SharedMemoryStruct) == 0x1000,
+              "Time's SharedMemoryStruct has the wrong size!");
+static_assert(std::is_trivial_v<SharedMemoryStruct>);
+
+class SharedMemory {
+public:
+    explicit SharedMemory(Core::System& system);
+
+    Kernel::KSharedMemory& GetKSharedMemory() {
+        return m_k_shared_memory;
+    }
+
+    void SetLocalSystemContext(SystemClockContext& context);
+    void SetNetworkSystemContext(SystemClockContext& context);
+    void SetSteadyClockTimePoint(ClockSourceId clock_source_id, s64 time_diff);
+    void SetContinuousAdjustment(ContinuousAdjustmentTimePoint& time_point);
+    void SetAutomaticCorrection(bool automatic_correction);
+    void UpdateBaseTime(s64 time);
+
+private:
+    Core::System& m_system;
+    Kernel::KSharedMemory& m_k_shared_memory;
+    SharedMemoryStruct* m_shared_memory_ptr;
+};
+
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/static.cpp
+++ b/src/core/hle/service/psc/time/static.cpp
@@ -0,0 +1,500 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/core.h"
+#include "core/core_timing.h"
+#include "core/hle/kernel/k_shared_memory.h"
+#include "core/hle/service/psc/time/clocks/ephemeral_network_system_clock_core.h"
+#include "core/hle/service/psc/time/clocks/standard_local_system_clock_core.h"
+#include "core/hle/service/psc/time/clocks/standard_network_system_clock_core.h"
+#include "core/hle/service/psc/time/clocks/standard_user_system_clock_core.h"
+#include "core/hle/service/psc/time/manager.h"
+#include "core/hle/service/psc/time/shared_memory.h"
+#include "core/hle/service/psc/time/static.h"
+#include "core/hle/service/psc/time/steady_clock.h"
+#include "core/hle/service/psc/time/system_clock.h"
+#include "core/hle/service/psc/time/time_zone.h"
+#include "core/hle/service/psc/time/time_zone_service.h"
+
+namespace Service::PSC::Time {
+namespace {
+constexpr Result GetTimeFromTimePointAndContext(s64* out_time, SteadyClockTimePoint& time_point,
+                                                SystemClockContext& context) {
+    R_UNLESS(out_time != nullptr, ResultInvalidArgument);
+    R_UNLESS(time_point.IdMatches(context.steady_time_point), ResultClockMismatch);
+
+    *out_time = context.offset + time_point.time_point;
+    R_SUCCEED();
+}
+} // namespace
+
+StaticService::StaticService(Core::System& system_, StaticServiceSetupInfo setup_info,
+                             std::shared_ptr<TimeManager> time, const char* name)
+    : ServiceFramework{system_, name}, m_system{system}, m_setup_info{setup_info}, m_time{time},
+      m_local_system_clock{m_time->m_standard_local_system_clock},
+      m_user_system_clock{m_time->m_standard_user_system_clock},
+      m_network_system_clock{m_time->m_standard_network_system_clock},
+      m_time_zone{m_time->m_time_zone},
+      m_ephemeral_network_clock{m_time->m_ephemeral_network_clock}, m_shared_memory{
+                                                                        m_time->m_shared_memory} {
+    // clang-format off
+        static const FunctionInfo functions[] = {
+            {0,   &StaticService::Handle_GetStandardUserSystemClock, "GetStandardUserSystemClock"},
+            {1,   &StaticService::Handle_GetStandardNetworkSystemClock, "GetStandardNetworkSystemClock"},
+            {2,   &StaticService::Handle_GetStandardSteadyClock, "GetStandardSteadyClock"},
+            {3,   &StaticService::Handle_GetTimeZoneService, "GetTimeZoneService"},
+            {4,   &StaticService::Handle_GetStandardLocalSystemClock, "GetStandardLocalSystemClock"},
+            {5,   &StaticService::Handle_GetEphemeralNetworkSystemClock, "GetEphemeralNetworkSystemClock"},
+            {20,  &StaticService::Handle_GetSharedMemoryNativeHandle, "GetSharedMemoryNativeHandle"},
+            {50,  &StaticService::Handle_SetStandardSteadyClockInternalOffset, "SetStandardSteadyClockInternalOffset"},
+            {51,  &StaticService::Handle_GetStandardSteadyClockRtcValue, "GetStandardSteadyClockRtcValue"},
+            {100, &StaticService::Handle_IsStandardUserSystemClockAutomaticCorrectionEnabled, "IsStandardUserSystemClockAutomaticCorrectionEnabled"},
+            {101, &StaticService::Handle_SetStandardUserSystemClockAutomaticCorrectionEnabled, "SetStandardUserSystemClockAutomaticCorrectionEnabled"},
+            {102, &StaticService::Handle_GetStandardUserSystemClockInitialYear, "GetStandardUserSystemClockInitialYear"},
+            {200, &StaticService::Handle_IsStandardNetworkSystemClockAccuracySufficient, "IsStandardNetworkSystemClockAccuracySufficient"},
+            {201, &StaticService::Handle_GetStandardUserSystemClockAutomaticCorrectionUpdatedTime, "GetStandardUserSystemClockAutomaticCorrectionUpdatedTime"},
+            {300, &StaticService::Handle_CalculateMonotonicSystemClockBaseTimePoint, "CalculateMonotonicSystemClockBaseTimePoint"},
+            {400, &StaticService::Handle_GetClockSnapshot, "GetClockSnapshot"},
+            {401, &StaticService::Handle_GetClockSnapshotFromSystemClockContext, "GetClockSnapshotFromSystemClockContext"},
+            {500, &StaticService::Handle_CalculateStandardUserSystemClockDifferenceByUser, "CalculateStandardUserSystemClockDifferenceByUser"},
+            {501, &StaticService::Handle_CalculateSpanBetween, "CalculateSpanBetween"},
+        };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+Result StaticService::GetClockSnapshotImpl(ClockSnapshot& out_snapshot,
+                                           SystemClockContext& user_context,
+                                           SystemClockContext& network_context, TimeType type) {
+    out_snapshot.user_context = user_context;
+    out_snapshot.network_context = network_context;
+
+    R_TRY(
+        m_time->m_standard_steady_clock.GetCurrentTimePoint(out_snapshot.steady_clock_time_point));
+
+    out_snapshot.is_automatic_correction_enabled = m_user_system_clock.GetAutomaticCorrection();
+
+    R_TRY(m_time_zone.GetLocationName(out_snapshot.location_name));
+
+    R_TRY(GetTimeFromTimePointAndContext(
+        &out_snapshot.user_time, out_snapshot.steady_clock_time_point, out_snapshot.user_context));
+
+    R_TRY(m_time_zone.ToCalendarTimeWithMyRule(out_snapshot.user_calendar_time,
+                                               out_snapshot.user_calendar_additional_time,
+                                               out_snapshot.user_time));
+
+    if (GetTimeFromTimePointAndContext(&out_snapshot.network_time,
+                                       out_snapshot.steady_clock_time_point,
+                                       out_snapshot.network_context) != ResultSuccess) {
+        out_snapshot.network_time = 0;
+    }
+
+    R_TRY(m_time_zone.ToCalendarTimeWithMyRule(out_snapshot.network_calendar_time,
+                                               out_snapshot.network_calendar_additional_time,
+                                               out_snapshot.network_time));
+    out_snapshot.type = type;
+    out_snapshot.unk_CE = 0;
+    R_SUCCEED();
+}
+
+void StaticService::Handle_GetStandardUserSystemClock(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    std::shared_ptr<SystemClock> service{};
+    auto res = GetStandardUserSystemClock(service);
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(res);
+    rb.PushIpcInterface<SystemClock>(std::move(service));
+}
+
+void StaticService::Handle_GetStandardNetworkSystemClock(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    std::shared_ptr<SystemClock> service{};
+    auto res = GetStandardNetworkSystemClock(service);
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(res);
+    rb.PushIpcInterface<SystemClock>(std::move(service));
+}
+
+void StaticService::Handle_GetStandardSteadyClock(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    std::shared_ptr<SteadyClock> service{};
+    auto res = GetStandardSteadyClock(service);
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(res);
+    rb.PushIpcInterface(std::move(service));
+}
+
+void StaticService::Handle_GetTimeZoneService(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    std::shared_ptr<TimeZoneService> service{};
+    auto res = GetTimeZoneService(service);
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(res);
+    rb.PushIpcInterface(std::move(service));
+}
+
+void StaticService::Handle_GetStandardLocalSystemClock(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    std::shared_ptr<SystemClock> service{};
+    auto res = GetStandardLocalSystemClock(service);
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(res);
+    rb.PushIpcInterface<SystemClock>(std::move(service));
+}
+
+void StaticService::Handle_GetEphemeralNetworkSystemClock(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    std::shared_ptr<SystemClock> service{};
+    auto res = GetEphemeralNetworkSystemClock(service);
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(res);
+    rb.PushIpcInterface<SystemClock>(std::move(service));
+}
+
+void StaticService::Handle_GetSharedMemoryNativeHandle(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    Kernel::KSharedMemory* shared_memory{};
+    auto res = GetSharedMemoryNativeHandle(&shared_memory);
+
+    IPC::ResponseBuilder rb{ctx, 2, 1};
+    rb.Push(res);
+    rb.PushCopyObjects(shared_memory);
+}
+
+void StaticService::Handle_SetStandardSteadyClockInternalOffset(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(m_setup_info.can_write_steady_clock ? ResultNotImplemented : ResultPermissionDenied);
+}
+
+void StaticService::Handle_GetStandardSteadyClockRtcValue(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultNotImplemented);
+}
+
+void StaticService::Handle_IsStandardUserSystemClockAutomaticCorrectionEnabled(
+    HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    bool is_enabled{};
+    auto res = IsStandardUserSystemClockAutomaticCorrectionEnabled(is_enabled);
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(res);
+    rb.Push<bool>(is_enabled);
+}
+
+void StaticService::Handle_SetStandardUserSystemClockAutomaticCorrectionEnabled(
+    HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto automatic_correction{rp.Pop<bool>()};
+
+    auto res = SetStandardUserSystemClockAutomaticCorrectionEnabled(automatic_correction);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void StaticService::Handle_GetStandardUserSystemClockInitialYear(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultNotImplemented);
+}
+
+void StaticService::Handle_IsStandardNetworkSystemClockAccuracySufficient(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    bool is_sufficient{};
+    auto res = IsStandardNetworkSystemClockAccuracySufficient(is_sufficient);
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(res);
+    rb.Push<bool>(is_sufficient);
+}
+
+void StaticService::Handle_GetStandardUserSystemClockAutomaticCorrectionUpdatedTime(
+    HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    SteadyClockTimePoint time_point{};
+    auto res = GetStandardUserSystemClockAutomaticCorrectionUpdatedTime(time_point);
+
+    IPC::ResponseBuilder rb{ctx, 2 + sizeof(SteadyClockTimePoint) / sizeof(u32)};
+    rb.Push(res);
+    rb.PushRaw<SteadyClockTimePoint>(time_point);
+}
+
+void StaticService::Handle_CalculateMonotonicSystemClockBaseTimePoint(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto context{rp.PopRaw<SystemClockContext>()};
+
+    s64 time{};
+    auto res = CalculateMonotonicSystemClockBaseTimePoint(time, context);
+
+    IPC::ResponseBuilder rb{ctx, 4};
+    rb.Push(res);
+    rb.Push<s64>(time);
+}
+
+void StaticService::Handle_GetClockSnapshot(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto type{rp.PopEnum<TimeType>()};
+
+    ClockSnapshot snapshot{};
+    auto res = GetClockSnapshot(snapshot, type);
+
+    ctx.WriteBuffer(snapshot);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void StaticService::Handle_GetClockSnapshotFromSystemClockContext(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto clock_type{rp.PopEnum<TimeType>()};
+    [[maybe_unused]] auto alignment{rp.Pop<u32>()};
+    auto user_context{rp.PopRaw<SystemClockContext>()};
+    auto network_context{rp.PopRaw<SystemClockContext>()};
+
+    ClockSnapshot snapshot{};
+    auto res =
+        GetClockSnapshotFromSystemClockContext(snapshot, user_context, network_context, clock_type);
+
+    ctx.WriteBuffer(snapshot);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void StaticService::Handle_CalculateStandardUserSystemClockDifferenceByUser(
+    HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    ClockSnapshot a{};
+    ClockSnapshot b{};
+
+    auto a_buffer{ctx.ReadBuffer(0)};
+    auto b_buffer{ctx.ReadBuffer(1)};
+
+    std::memcpy(&a, a_buffer.data(), sizeof(ClockSnapshot));
+    std::memcpy(&b, b_buffer.data(), sizeof(ClockSnapshot));
+
+    s64 difference{};
+    auto res = CalculateStandardUserSystemClockDifferenceByUser(difference, a, b);
+
+    IPC::ResponseBuilder rb{ctx, 4};
+    rb.Push(res);
+    rb.Push(difference);
+}
+
+void StaticService::Handle_CalculateSpanBetween(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    ClockSnapshot a{};
+    ClockSnapshot b{};
+
+    auto a_buffer{ctx.ReadBuffer(0)};
+    auto b_buffer{ctx.ReadBuffer(1)};
+
+    std::memcpy(&a, a_buffer.data(), sizeof(ClockSnapshot));
+    std::memcpy(&b, b_buffer.data(), sizeof(ClockSnapshot));
+
+    s64 time{};
+    auto res = CalculateSpanBetween(time, a, b);
+
+    IPC::ResponseBuilder rb{ctx, 4};
+    rb.Push(res);
+    rb.Push(time);
+}
+
+// =============================== Implementations ===========================
+
+Result StaticService::GetStandardUserSystemClock(std::shared_ptr<SystemClock>& out_service) {
+    out_service = std::make_shared<SystemClock>(m_system, m_user_system_clock,
+                                                m_setup_info.can_write_user_clock,
+                                                m_setup_info.can_write_uninitialized_clock);
+    R_SUCCEED();
+}
+
+Result StaticService::GetStandardNetworkSystemClock(std::shared_ptr<SystemClock>& out_service) {
+    out_service = std::make_shared<SystemClock>(m_system, m_network_system_clock,
+                                                m_setup_info.can_write_network_clock,
+                                                m_setup_info.can_write_uninitialized_clock);
+    R_SUCCEED();
+}
+
+Result StaticService::GetStandardSteadyClock(std::shared_ptr<SteadyClock>& out_service) {
+    out_service =
+        std::make_shared<SteadyClock>(m_system, m_time, m_setup_info.can_write_steady_clock,
+                                      m_setup_info.can_write_uninitialized_clock);
+    R_SUCCEED();
+}
+
+Result StaticService::GetTimeZoneService(std::shared_ptr<TimeZoneService>& out_service) {
+    out_service =
+        std::make_shared<TimeZoneService>(m_system, m_time->m_standard_steady_clock, m_time_zone,
+                                          m_setup_info.can_write_timezone_device_location);
+    R_SUCCEED();
+}
+
+Result StaticService::GetStandardLocalSystemClock(std::shared_ptr<SystemClock>& out_service) {
+    out_service = std::make_shared<SystemClock>(m_system, m_local_system_clock,
+                                                m_setup_info.can_write_local_clock,
+                                                m_setup_info.can_write_uninitialized_clock);
+    R_SUCCEED();
+}
+
+Result StaticService::GetEphemeralNetworkSystemClock(std::shared_ptr<SystemClock>& out_service) {
+    out_service = std::make_shared<SystemClock>(m_system, m_ephemeral_network_clock,
+                                                m_setup_info.can_write_network_clock,
+                                                m_setup_info.can_write_uninitialized_clock);
+    R_SUCCEED();
+}
+
+Result StaticService::GetSharedMemoryNativeHandle(Kernel::KSharedMemory** out_shared_memory) {
+    *out_shared_memory = &m_shared_memory.GetKSharedMemory();
+    R_SUCCEED();
+}
+
+Result StaticService::IsStandardUserSystemClockAutomaticCorrectionEnabled(bool& out_is_enabled) {
+    R_UNLESS(m_user_system_clock.IsInitialized(), ResultClockUninitialized);
+
+    out_is_enabled = m_user_system_clock.GetAutomaticCorrection();
+    R_SUCCEED();
+}
+
+Result StaticService::SetStandardUserSystemClockAutomaticCorrectionEnabled(
+    bool automatic_correction) {
+    R_UNLESS(m_user_system_clock.IsInitialized() && m_time->m_standard_steady_clock.IsInitialized(),
+             ResultClockUninitialized);
+    R_UNLESS(m_setup_info.can_write_user_clock, ResultPermissionDenied);
+
+    R_TRY(m_user_system_clock.SetAutomaticCorrection(automatic_correction));
+
+    m_shared_memory.SetAutomaticCorrection(automatic_correction);
+
+    SteadyClockTimePoint time_point{};
+    R_TRY(m_time->m_standard_steady_clock.GetCurrentTimePoint(time_point));
+
+    m_user_system_clock.SetTimePointAndSignal(time_point);
+    m_user_system_clock.GetEvent().Signal();
+    R_SUCCEED();
+}
+
+Result StaticService::IsStandardNetworkSystemClockAccuracySufficient(bool& out_is_sufficient) {
+    out_is_sufficient = m_network_system_clock.IsAccuracySufficient();
+    R_SUCCEED();
+}
+
+Result StaticService::GetStandardUserSystemClockAutomaticCorrectionUpdatedTime(
+    SteadyClockTimePoint& out_time_point) {
+    R_UNLESS(m_user_system_clock.IsInitialized(), ResultClockUninitialized);
+
+    m_user_system_clock.GetTimePoint(out_time_point);
+
+    R_SUCCEED();
+}
+
+Result StaticService::CalculateMonotonicSystemClockBaseTimePoint(s64& out_time,
+                                                                 SystemClockContext& context) {
+    R_UNLESS(m_time->m_standard_steady_clock.IsInitialized(), ResultClockUninitialized);
+
+    SteadyClockTimePoint time_point{};
+    R_TRY(m_time->m_standard_steady_clock.GetCurrentTimePoint(time_point));
+
+    R_UNLESS(time_point.IdMatches(context.steady_time_point), ResultClockMismatch);
+
+    auto one_second_ns{
+        std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::seconds(1)).count()};
+    auto ticks{m_system.CoreTiming().GetClockTicks()};
+    auto current_time{ConvertToTimeSpan(ticks).count()};
+    out_time = ((context.offset + time_point.time_point) - (current_time / one_second_ns));
+    R_SUCCEED();
+}
+
+Result StaticService::GetClockSnapshot(ClockSnapshot& out_snapshot, TimeType type) {
+    SystemClockContext user_context{};
+    R_TRY(m_user_system_clock.GetContext(user_context));
+
+    SystemClockContext network_context{};
+    R_TRY(m_network_system_clock.GetContext(network_context));
+
+    R_RETURN(GetClockSnapshotImpl(out_snapshot, user_context, network_context, type));
+}
+
+Result StaticService::GetClockSnapshotFromSystemClockContext(ClockSnapshot& out_snapshot,
+                                                             SystemClockContext& user_context,
+                                                             SystemClockContext& network_context,
+                                                             TimeType type) {
+    R_RETURN(GetClockSnapshotImpl(out_snapshot, user_context, network_context, type));
+}
+
+Result StaticService::CalculateStandardUserSystemClockDifferenceByUser(s64& out_time,
+                                                                       ClockSnapshot& a,
+                                                                       ClockSnapshot& b) {
+    auto diff_s =
+        std::chrono::seconds(b.user_context.offset) - std::chrono::seconds(a.user_context.offset);
+
+    if (a.user_context == b.user_context ||
+        !a.user_context.steady_time_point.IdMatches(b.user_context.steady_time_point)) {
+        out_time = 0;
+        R_SUCCEED();
+    }
+
+    if (!a.is_automatic_correction_enabled || !b.is_automatic_correction_enabled) {
+        out_time = std::chrono::duration_cast<std::chrono::nanoseconds>(diff_s).count();
+        R_SUCCEED();
+    }
+
+    if (a.network_context.steady_time_point.IdMatches(a.steady_clock_time_point) ||
+        b.network_context.steady_time_point.IdMatches(b.steady_clock_time_point)) {
+        out_time = 0;
+        R_SUCCEED();
+    }
+
+    out_time = std::chrono::duration_cast<std::chrono::nanoseconds>(diff_s).count();
+    R_SUCCEED();
+}
+
+Result StaticService::CalculateSpanBetween(s64& out_time, ClockSnapshot& a, ClockSnapshot& b) {
+    s64 time_s{};
+    auto res =
+        GetSpanBetweenTimePoints(&time_s, a.steady_clock_time_point, b.steady_clock_time_point);
+
+    if (res != ResultSuccess) {
+        R_UNLESS(a.network_time != 0 && b.network_time != 0, ResultTimeNotFound);
+        time_s = b.network_time - a.network_time;
+    }
+
+    out_time =
+        std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::seconds(time_s)).count();
+    R_SUCCEED();
+}
+
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/static.h
+++ b/src/core/hle/service/psc/time/static.h
@@ -0,0 +1,95 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/service/ipc_helpers.h"
+#include "core/hle/service/psc/time/common.h"
+#include "core/hle/service/server_manager.h"
+#include "core/hle/service/service.h"
+
+namespace Core {
+class System;
+}
+
+namespace Kernel {
+class KSharedMemory;
+}
+
+namespace Service::PSC::Time {
+class TimeManager;
+class StandardLocalSystemClockCore;
+class StandardUserSystemClockCore;
+class StandardNetworkSystemClockCore;
+class TimeZone;
+class SystemClock;
+class SteadyClock;
+class TimeZoneService;
+class EphemeralNetworkSystemClockCore;
+class SharedMemory;
+
+class StaticService final : public ServiceFramework<StaticService> {
+public:
+    explicit StaticService(Core::System& system, StaticServiceSetupInfo setup_info,
+                           std::shared_ptr<TimeManager> time, const char* name);
+
+    ~StaticService() override = default;
+
+    Result GetStandardUserSystemClock(std::shared_ptr<SystemClock>& out_service);
+    Result GetStandardNetworkSystemClock(std::shared_ptr<SystemClock>& out_service);
+    Result GetStandardSteadyClock(std::shared_ptr<SteadyClock>& out_service);
+    Result GetTimeZoneService(std::shared_ptr<TimeZoneService>& out_service);
+    Result GetStandardLocalSystemClock(std::shared_ptr<SystemClock>& out_service);
+    Result GetEphemeralNetworkSystemClock(std::shared_ptr<SystemClock>& out_service);
+    Result GetSharedMemoryNativeHandle(Kernel::KSharedMemory** out_shared_memory);
+    Result IsStandardUserSystemClockAutomaticCorrectionEnabled(bool& out_is_enabled);
+    Result SetStandardUserSystemClockAutomaticCorrectionEnabled(bool automatic_correction);
+    Result IsStandardNetworkSystemClockAccuracySufficient(bool& out_is_sufficient);
+    Result GetStandardUserSystemClockAutomaticCorrectionUpdatedTime(
+        SteadyClockTimePoint& out_time_point);
+    Result CalculateMonotonicSystemClockBaseTimePoint(s64& out_time, SystemClockContext& context);
+    Result GetClockSnapshot(ClockSnapshot& out_snapshot, TimeType type);
+    Result GetClockSnapshotFromSystemClockContext(ClockSnapshot& out_snapshot,
+                                                  SystemClockContext& user_context,
+                                                  SystemClockContext& network_context,
+                                                  TimeType type);
+    Result CalculateStandardUserSystemClockDifferenceByUser(s64& out_time, ClockSnapshot& a,
+                                                            ClockSnapshot& b);
+    Result CalculateSpanBetween(s64& out_time, ClockSnapshot& a, ClockSnapshot& b);
+
+private:
+    Result GetClockSnapshotImpl(ClockSnapshot& out_snapshot, SystemClockContext& user_context,
+                                SystemClockContext& network_context, TimeType type);
+
+    void Handle_GetStandardUserSystemClock(HLERequestContext& ctx);
+    void Handle_GetStandardNetworkSystemClock(HLERequestContext& ctx);
+    void Handle_GetStandardSteadyClock(HLERequestContext& ctx);
+    void Handle_GetTimeZoneService(HLERequestContext& ctx);
+    void Handle_GetStandardLocalSystemClock(HLERequestContext& ctx);
+    void Handle_GetEphemeralNetworkSystemClock(HLERequestContext& ctx);
+    void Handle_GetSharedMemoryNativeHandle(HLERequestContext& ctx);
+    void Handle_SetStandardSteadyClockInternalOffset(HLERequestContext& ctx);
+    void Handle_GetStandardSteadyClockRtcValue(HLERequestContext& ctx);
+    void Handle_IsStandardUserSystemClockAutomaticCorrectionEnabled(HLERequestContext& ctx);
+    void Handle_SetStandardUserSystemClockAutomaticCorrectionEnabled(HLERequestContext& ctx);
+    void Handle_GetStandardUserSystemClockInitialYear(HLERequestContext& ctx);
+    void Handle_IsStandardNetworkSystemClockAccuracySufficient(HLERequestContext& ctx);
+    void Handle_GetStandardUserSystemClockAutomaticCorrectionUpdatedTime(HLERequestContext& ctx);
+    void Handle_CalculateMonotonicSystemClockBaseTimePoint(HLERequestContext& ctx);
+    void Handle_GetClockSnapshot(HLERequestContext& ctx);
+    void Handle_GetClockSnapshotFromSystemClockContext(HLERequestContext& ctx);
+    void Handle_CalculateStandardUserSystemClockDifferenceByUser(HLERequestContext& ctx);
+    void Handle_CalculateSpanBetween(HLERequestContext& ctx);
+
+    Core::System& m_system;
+    StaticServiceSetupInfo m_setup_info;
+    std::shared_ptr<TimeManager> m_time;
+    StandardLocalSystemClockCore& m_local_system_clock;
+    StandardUserSystemClockCore& m_user_system_clock;
+    StandardNetworkSystemClockCore& m_network_system_clock;
+    TimeZone& m_time_zone;
+    EphemeralNetworkSystemClockCore& m_ephemeral_network_clock;
+    SharedMemory& m_shared_memory;
+};
+
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/steady_clock.cpp
+++ b/src/core/hle/service/psc/time/steady_clock.cpp
@@ -0,0 +1,164 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/core.h"
+#include "core/hle/service/psc/time/steady_clock.h"
+
+namespace Service::PSC::Time {
+
+SteadyClock::SteadyClock(Core::System& system_, std::shared_ptr<TimeManager> manager,
+                         bool can_write_steady_clock, bool can_write_uninitialized_clock)
+    : ServiceFramework{system_, "ISteadyClock"}, m_system{system},
+      m_clock_core{manager->m_standard_steady_clock},
+      m_can_write_steady_clock{can_write_steady_clock}, m_can_write_uninitialized_clock{
+                                                            can_write_uninitialized_clock} {
+    // clang-format off
+         static const FunctionInfo functions[] = {
+        {0, &SteadyClock::Handle_GetCurrentTimePoint, "GetCurrentTimePoint"},
+        {2, &SteadyClock::Handle_GetTestOffset, "GetTestOffset"},
+        {3, &SteadyClock::Handle_SetTestOffset, "SetTestOffset"},
+        {100, &SteadyClock::Handle_GetRtcValue, "GetRtcValue"},
+        {101, &SteadyClock::Handle_IsRtcResetDetected, "IsRtcResetDetected"},
+        {102, &SteadyClock::Handle_GetSetupResultValue, "GetSetupResultValue"},
+        {200, &SteadyClock::Handle_GetInternalOffset, "GetInternalOffset"},
+    };
+    // clang-format on
+    RegisterHandlers(functions);
+}
+
+void SteadyClock::Handle_GetCurrentTimePoint(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    SteadyClockTimePoint time_point{};
+    auto res = GetCurrentTimePoint(time_point);
+
+    IPC::ResponseBuilder rb{ctx, 2 + sizeof(SteadyClockTimePoint) / sizeof(u32)};
+    rb.Push(res);
+    rb.PushRaw<SteadyClockTimePoint>(time_point);
+}
+
+void SteadyClock::Handle_GetTestOffset(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    s64 test_offset{};
+    auto res = GetTestOffset(test_offset);
+
+    IPC::ResponseBuilder rb{ctx, 4};
+    rb.Push(res);
+    rb.Push(test_offset);
+}
+
+void SteadyClock::Handle_SetTestOffset(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto test_offset{rp.Pop<s64>()};
+
+    auto res = SetTestOffset(test_offset);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void SteadyClock::Handle_GetRtcValue(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    s64 rtc_value{};
+    auto res = GetRtcValue(rtc_value);
+
+    IPC::ResponseBuilder rb{ctx, 4};
+    rb.Push(res);
+    rb.Push(rtc_value);
+}
+
+void SteadyClock::Handle_IsRtcResetDetected(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    bool reset_detected{false};
+    auto res = IsRtcResetDetected(reset_detected);
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(res);
+    rb.Push(reset_detected);
+}
+
+void SteadyClock::Handle_GetSetupResultValue(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    Result result_value{ResultSuccess};
+    auto res = GetSetupResultValue(result_value);
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(res);
+    rb.Push(result_value);
+}
+
+void SteadyClock::Handle_GetInternalOffset(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    s64 internal_offset{};
+    auto res = GetInternalOffset(internal_offset);
+
+    IPC::ResponseBuilder rb{ctx, 4};
+    rb.Push(res);
+    rb.Push(internal_offset);
+}
+
+// =============================== Implementations ===========================
+
+Result SteadyClock::GetCurrentTimePoint(SteadyClockTimePoint& out_time_point) {
+    R_UNLESS(m_can_write_uninitialized_clock || m_clock_core.IsInitialized(),
+             ResultClockUninitialized);
+
+    R_RETURN(m_clock_core.GetCurrentTimePoint(out_time_point));
+}
+
+Result SteadyClock::GetTestOffset(s64& out_test_offset) {
+    R_UNLESS(m_can_write_uninitialized_clock || m_clock_core.IsInitialized(),
+             ResultClockUninitialized);
+
+    out_test_offset = m_clock_core.GetTestOffset();
+    R_SUCCEED();
+}
+
+Result SteadyClock::SetTestOffset(s64 test_offset) {
+    R_UNLESS(m_can_write_steady_clock, ResultPermissionDenied);
+    R_UNLESS(m_can_write_uninitialized_clock || m_clock_core.IsInitialized(),
+             ResultClockUninitialized);
+
+    m_clock_core.SetTestOffset(test_offset);
+    R_SUCCEED();
+}
+
+Result SteadyClock::GetRtcValue(s64& out_rtc_value) {
+    R_UNLESS(m_can_write_uninitialized_clock || m_clock_core.IsInitialized(),
+             ResultClockUninitialized);
+
+    R_RETURN(m_clock_core.GetRtcValue(out_rtc_value));
+}
+
+Result SteadyClock::IsRtcResetDetected(bool& out_is_detected) {
+    R_UNLESS(m_can_write_uninitialized_clock || m_clock_core.IsInitialized(),
+             ResultClockUninitialized);
+
+    out_is_detected = m_clock_core.IsResetDetected();
+    R_SUCCEED();
+}
+
+Result SteadyClock::GetSetupResultValue(Result& out_result) {
+    R_UNLESS(m_can_write_uninitialized_clock || m_clock_core.IsInitialized(),
+             ResultClockUninitialized);
+
+    out_result = m_clock_core.GetSetupResultValue();
+    R_SUCCEED();
+}
+
+Result SteadyClock::GetInternalOffset(s64& out_internal_offset) {
+    R_UNLESS(m_can_write_uninitialized_clock || m_clock_core.IsInitialized(),
+             ResultClockUninitialized);
+
+    out_internal_offset = m_clock_core.GetInternalOffset();
+    R_SUCCEED();
+}
+
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/steady_clock.h
+++ b/src/core/hle/service/psc/time/steady_clock.h
@@ -0,0 +1,49 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/service/ipc_helpers.h"
+#include "core/hle/service/psc/time/common.h"
+#include "core/hle/service/psc/time/manager.h"
+#include "core/hle/service/server_manager.h"
+#include "core/hle/service/service.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::PSC::Time {
+
+class SteadyClock final : public ServiceFramework<SteadyClock> {
+public:
+    explicit SteadyClock(Core::System& system, std::shared_ptr<TimeManager> manager,
+                         bool can_write_steady_clock, bool can_write_uninitialized_clock);
+
+    ~SteadyClock() override = default;
+
+    Result GetCurrentTimePoint(SteadyClockTimePoint& out_time_point);
+    Result GetTestOffset(s64& out_test_offset);
+    Result SetTestOffset(s64 test_offset);
+    Result GetRtcValue(s64& out_rtc_value);
+    Result IsRtcResetDetected(bool& out_is_detected);
+    Result GetSetupResultValue(Result& out_result);
+    Result GetInternalOffset(s64& out_internal_offset);
+
+private:
+    void Handle_GetCurrentTimePoint(HLERequestContext& ctx);
+    void Handle_GetTestOffset(HLERequestContext& ctx);
+    void Handle_SetTestOffset(HLERequestContext& ctx);
+    void Handle_GetRtcValue(HLERequestContext& ctx);
+    void Handle_IsRtcResetDetected(HLERequestContext& ctx);
+    void Handle_GetSetupResultValue(HLERequestContext& ctx);
+    void Handle_GetInternalOffset(HLERequestContext& ctx);
+
+    Core::System& m_system;
+
+    StandardSteadyClockCore& m_clock_core;
+    bool m_can_write_steady_clock;
+    bool m_can_write_uninitialized_clock;
+};
+
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/system_clock.cpp
+++ b/src/core/hle/service/psc/time/system_clock.cpp
@@ -0,0 +1,127 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/core.h"
+#include "core/hle/service/psc/time/system_clock.h"
+
+namespace Service::PSC::Time {
+
+SystemClock::SystemClock(Core::System& system_, SystemClockCore& clock_core, bool can_write_clock,
+                         bool can_write_uninitialized_clock)
+    : ServiceFramework{system_, "ISystemClock"}, m_system{system}, m_clock_core{clock_core},
+      m_can_write_clock{can_write_clock}, m_can_write_uninitialized_clock{
+                                              can_write_uninitialized_clock} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, &SystemClock::Handle_GetCurrentTime, "GetCurrentTime"},
+        {1, &SystemClock::Handle_SetCurrentTime, "SetCurrentTime"},
+        {2, &SystemClock::Handle_GetSystemClockContext, "GetSystemClockContext"},
+        {3, &SystemClock::Handle_SetSystemClockContext, "SetSystemClockContext"},
+        {4, &SystemClock::Handle_GetOperationEventReadableHandle, "GetOperationEventReadableHandle"},
+    };
+    // clang-format on
+    RegisterHandlers(functions);
+}
+
+void SystemClock::Handle_GetCurrentTime(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    s64 time{};
+    auto res = GetCurrentTime(time);
+
+    IPC::ResponseBuilder rb{ctx, 4};
+    rb.Push(res);
+    rb.Push<s64>(time);
+}
+
+void SystemClock::Handle_SetCurrentTime(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto time{rp.Pop<s64>()};
+
+    auto res = SetCurrentTime(time);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void SystemClock::Handle_GetSystemClockContext(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    SystemClockContext context{};
+    auto res = GetSystemClockContext(context);
+
+    IPC::ResponseBuilder rb{ctx, 2 + sizeof(SystemClockContext) / sizeof(u32)};
+    rb.Push(res);
+    rb.PushRaw<SystemClockContext>(context);
+}
+
+void SystemClock::Handle_SetSystemClockContext(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto context{rp.PopRaw<SystemClockContext>()};
+
+    auto res = SetSystemClockContext(context);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void SystemClock::Handle_GetOperationEventReadableHandle(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    Kernel::KEvent* event{};
+    auto res = GetOperationEventReadableHandle(&event);
+
+    IPC::ResponseBuilder rb{ctx, 2, 1};
+    rb.Push(res);
+    rb.PushCopyObjects(event->GetReadableEvent());
+}
+
+// =============================== Implementations ===========================
+
+Result SystemClock::GetCurrentTime(s64& out_time) {
+    R_UNLESS(m_can_write_uninitialized_clock || m_clock_core.IsInitialized(),
+             ResultClockUninitialized);
+
+    R_RETURN(m_clock_core.GetCurrentTime(&out_time));
+}
+
+Result SystemClock::SetCurrentTime(s64 time) {
+    R_UNLESS(m_can_write_clock, ResultPermissionDenied);
+    R_UNLESS(m_can_write_uninitialized_clock || m_clock_core.IsInitialized(),
+             ResultClockUninitialized);
+
+    R_RETURN(m_clock_core.SetCurrentTime(time));
+}
+
+Result SystemClock::GetSystemClockContext(SystemClockContext& out_context) {
+    R_UNLESS(m_can_write_uninitialized_clock || m_clock_core.IsInitialized(),
+             ResultClockUninitialized);
+
+    R_RETURN(m_clock_core.GetContext(out_context));
+}
+
+Result SystemClock::SetSystemClockContext(SystemClockContext& context) {
+    R_UNLESS(m_can_write_clock, ResultPermissionDenied);
+    R_UNLESS(m_can_write_uninitialized_clock || m_clock_core.IsInitialized(),
+             ResultClockUninitialized);
+
+    R_RETURN(m_clock_core.SetContextAndWrite(context));
+}
+
+Result SystemClock::GetOperationEventReadableHandle(Kernel::KEvent** out_event) {
+    if (!m_operation_event) {
+        m_operation_event = std::make_unique<OperationEvent>(m_system);
+        R_UNLESS(m_operation_event != nullptr, ResultFailed);
+
+        m_clock_core.LinkOperationEvent(*m_operation_event);
+    }
+
+    *out_event = m_operation_event->m_event;
+    R_SUCCEED();
+}
+
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/system_clock.h
+++ b/src/core/hle/service/psc/time/system_clock.h
@@ -0,0 +1,46 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/service/ipc_helpers.h"
+#include "core/hle/service/psc/time/common.h"
+#include "core/hle/service/psc/time/manager.h"
+#include "core/hle/service/server_manager.h"
+#include "core/hle/service/service.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::PSC::Time {
+
+class SystemClock final : public ServiceFramework<SystemClock> {
+public:
+    explicit SystemClock(Core::System& system, SystemClockCore& system_clock_core,
+                         bool can_write_clock, bool can_write_uninitialized_clock);
+
+    ~SystemClock() override = default;
+
+    Result GetCurrentTime(s64& out_time);
+    Result SetCurrentTime(s64 time);
+    Result GetSystemClockContext(SystemClockContext& out_context);
+    Result SetSystemClockContext(SystemClockContext& context);
+    Result GetOperationEventReadableHandle(Kernel::KEvent** out_event);
+
+private:
+    void Handle_GetCurrentTime(HLERequestContext& ctx);
+    void Handle_SetCurrentTime(HLERequestContext& ctx);
+    void Handle_GetSystemClockContext(HLERequestContext& ctx);
+    void Handle_SetSystemClockContext(HLERequestContext& ctx);
+    void Handle_GetOperationEventReadableHandle(HLERequestContext& ctx);
+
+    Core::System& m_system;
+
+    SystemClockCore& m_clock_core;
+    bool m_can_write_clock;
+    bool m_can_write_uninitialized_clock;
+    std::unique_ptr<OperationEvent> m_operation_event{};
+};
+
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/time_zone.cpp
+++ b/src/core/hle/service/psc/time/time_zone.cpp
@@ -0,0 +1,280 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/psc/time/time_zone.h"
+
+namespace Service::PSC::Time {
+namespace {
+constexpr Result ValidateRule(Tz::Rule& rule) {
+    if (rule.typecnt > static_cast<s32>(Tz::TZ_MAX_TYPES) ||
+        rule.timecnt > static_cast<s32>(Tz::TZ_MAX_TIMES) ||
+        rule.charcnt > static_cast<s32>(Tz::TZ_MAX_CHARS)) {
+        R_RETURN(ResultTimeZoneOutOfRange);
+    }
+
+    for (s32 i = 0; i < rule.timecnt; i++) {
+        if (rule.types[i] >= rule.typecnt) {
+            R_RETURN(ResultTimeZoneOutOfRange);
+        }
+    }
+
+    for (s32 i = 0; i < rule.typecnt; i++) {
+        if (rule.ttis[i].tt_desigidx >= static_cast<s32>(rule.chars.size())) {
+            R_RETURN(ResultTimeZoneOutOfRange);
+        }
+    }
+    R_SUCCEED();
+}
+
+constexpr bool GetTimeZoneTime(s64& out_time, Tz::Rule& rule, s64 time, s32 index,
+                               s32 index_offset) {
+    s32 found_idx{};
+    s32 expected_index{index + index_offset};
+    s64 time_to_find{time + rule.ttis[rule.types[index]].tt_utoff -
+                     rule.ttis[rule.types[expected_index]].tt_utoff};
+
+    if (rule.timecnt > 1 && rule.ats[0] <= time_to_find) {
+        s32 low{1};
+        s32 high{rule.timecnt};
+
+        while (low < high) {
+            auto mid{(low + high) / 2};
+            if (rule.ats[mid] <= time_to_find) {
+                low = mid + 1;
+            } else if (rule.ats[mid] > time_to_find) {
+                high = mid;
+            }
+        }
+        found_idx = low - 1;
+    }
+
+    if (found_idx == expected_index) {
+        out_time = time_to_find;
+    }
+    return found_idx == expected_index;
+}
+} // namespace
+
+void TimeZone::SetTimePoint(SteadyClockTimePoint& time_point) {
+    std::scoped_lock l{m_mutex};
+    m_steady_clock_time_point = time_point;
+}
+
+void TimeZone::SetTotalLocationNameCount(u32 count) {
+    std::scoped_lock l{m_mutex};
+    m_total_location_name_count = count;
+}
+
+void TimeZone::SetRuleVersion(RuleVersion& rule_version) {
+    std::scoped_lock l{m_mutex};
+    m_rule_version = rule_version;
+}
+
+Result TimeZone::GetLocationName(LocationName& out_name) {
+    std::scoped_lock l{m_mutex};
+    R_UNLESS(m_initialized, ResultClockUninitialized);
+    out_name = m_location;
+    R_SUCCEED();
+}
+
+Result TimeZone::GetTotalLocationCount(u32& out_count) {
+    std::scoped_lock l{m_mutex};
+    if (!m_initialized) {
+        return ResultClockUninitialized;
+    }
+
+    out_count = m_total_location_name_count;
+    R_SUCCEED();
+}
+
+Result TimeZone::GetRuleVersion(RuleVersion& out_rule_version) {
+    std::scoped_lock l{m_mutex};
+    if (!m_initialized) {
+        return ResultClockUninitialized;
+    }
+    out_rule_version = m_rule_version;
+    R_SUCCEED();
+}
+
+Result TimeZone::GetTimePoint(SteadyClockTimePoint& out_time_point) {
+    std::scoped_lock l{m_mutex};
+    if (!m_initialized) {
+        return ResultClockUninitialized;
+    }
+    out_time_point = m_steady_clock_time_point;
+    R_SUCCEED();
+}
+
+Result TimeZone::ToCalendarTime(CalendarTime& out_calendar_time,
+                                CalendarAdditionalInfo& out_additional_info, s64 time,
+                                Tz::Rule& rule) {
+    std::scoped_lock l{m_mutex};
+    R_RETURN(ToCalendarTimeImpl(out_calendar_time, out_additional_info, time, rule));
+}
+
+Result TimeZone::ToCalendarTimeWithMyRule(CalendarTime& calendar_time,
+                                          CalendarAdditionalInfo& calendar_additional, s64 time) {
+    // This is checked outside the mutex. Bug?
+    if (!m_initialized) {
+        return ResultClockUninitialized;
+    }
+
+    std::scoped_lock l{m_mutex};
+    R_RETURN(ToCalendarTimeImpl(calendar_time, calendar_additional, time, m_my_rule));
+}
+
+Result TimeZone::ParseBinary(LocationName& name, std::span<const u8> binary) {
+    std::scoped_lock l{m_mutex};
+
+    Tz::Rule tmp_rule{};
+    R_TRY(ParseBinaryImpl(tmp_rule, binary));
+
+    m_my_rule = tmp_rule;
+    m_location = name;
+
+    R_SUCCEED();
+}
+
+Result TimeZone::ParseBinaryInto(Tz::Rule& out_rule, std::span<const u8> binary) {
+    std::scoped_lock l{m_mutex};
+    R_RETURN(ParseBinaryImpl(out_rule, binary));
+}
+
+Result TimeZone::ToPosixTime(u32& out_count, std::span<s64, 2> out_times, u32 out_times_count,
+                             CalendarTime& calendar, Tz::Rule& rule) {
+    std::scoped_lock l{m_mutex};
+
+    auto res = ToPosixTimeImpl(out_count, out_times, out_times_count, calendar, rule, -1);
+
+    if (res != ResultSuccess) {
+        if (res == ResultTimeZoneNotFound) {
+            res = ResultSuccess;
+            out_count = 0;
+        }
+    } else if (out_count == 2 && out_times[0] > out_times[1]) {
+        std::swap(out_times[0], out_times[1]);
+    }
+    R_RETURN(res);
+}
+
+Result TimeZone::ToPosixTimeWithMyRule(u32& out_count, std::span<s64, 2> out_times,
+                                       u32 out_times_count, CalendarTime& calendar) {
+    std::scoped_lock l{m_mutex};
+
+    auto res = ToPosixTimeImpl(out_count, out_times, out_times_count, calendar, m_my_rule, -1);
+
+    if (res != ResultSuccess) {
+        if (res == ResultTimeZoneNotFound) {
+            res = ResultSuccess;
+            out_count = 0;
+        }
+    } else if (out_count == 2 && out_times[0] > out_times[1]) {
+        std::swap(out_times[0], out_times[1]);
+    }
+    R_RETURN(res);
+}
+
+Result TimeZone::ParseBinaryImpl(Tz::Rule& out_rule, std::span<const u8> binary) {
+    if (Tz::ParseTimeZoneBinary(out_rule, binary)) {
+        R_RETURN(ResultTimeZoneParseFailed);
+    }
+    R_SUCCEED();
+}
+
+Result TimeZone::ToCalendarTimeImpl(CalendarTime& out_calendar_time,
+                                    CalendarAdditionalInfo& out_additional_info, s64 time,
+                                    Tz::Rule& rule) {
+    R_TRY(ValidateRule(rule));
+
+    Tz::CalendarTimeInternal calendar_internal{};
+    time_t time_tmp{static_cast<time_t>(time)};
+    if (Tz::localtime_rz(&calendar_internal, &rule, &time_tmp)) {
+        R_RETURN(ResultOverflow);
+    }
+
+    out_calendar_time.year = static_cast<s16>(calendar_internal.tm_year + 1900);
+    out_calendar_time.month = static_cast<s8>(calendar_internal.tm_mon + 1);
+    out_calendar_time.day = static_cast<s8>(calendar_internal.tm_mday);
+    out_calendar_time.hour = static_cast<s8>(calendar_internal.tm_hour);
+    out_calendar_time.minute = static_cast<s8>(calendar_internal.tm_min);
+    out_calendar_time.second = static_cast<s8>(calendar_internal.tm_sec);
+
+    out_additional_info.day_of_week = calendar_internal.tm_wday;
+    out_additional_info.day_of_year = calendar_internal.tm_yday;
+
+    std::memcpy(out_additional_info.name.data(), calendar_internal.tm_zone.data(),
+                out_additional_info.name.size());
+    out_additional_info.name[out_additional_info.name.size() - 1] = '\0';
+
+    out_additional_info.is_dst = calendar_internal.tm_isdst;
+    out_additional_info.ut_offset = calendar_internal.tm_utoff;
+
+    R_SUCCEED();
+}
+
+Result TimeZone::ToPosixTimeImpl(u32& out_count, std::span<s64, 2> out_times, u32 out_times_count,
+                                 CalendarTime& calendar, Tz::Rule& rule, s32 is_dst) {
+    R_TRY(ValidateRule(rule));
+
+    calendar.month -= 1;
+    calendar.year -= 1900;
+
+    Tz::CalendarTimeInternal internal{
+        .tm_sec = calendar.second,
+        .tm_min = calendar.minute,
+        .tm_hour = calendar.hour,
+        .tm_mday = calendar.day,
+        .tm_mon = calendar.month,
+        .tm_year = calendar.year,
+        .tm_wday = 0,
+        .tm_yday = 0,
+        .tm_isdst = is_dst,
+        .tm_zone = {},
+        .tm_utoff = 0,
+        .time_index = 0,
+    };
+    time_t time_tmp{};
+    auto res = Tz::mktime_tzname(&time_tmp, &rule, &internal);
+    s64 time = static_cast<s64>(time_tmp);
+
+    if (res == 1) {
+        R_RETURN(ResultOverflow);
+    } else if (res == 2) {
+        R_RETURN(ResultTimeZoneNotFound);
+    }
+
+    if (internal.tm_sec != calendar.second || internal.tm_min != calendar.minute ||
+        internal.tm_hour != calendar.hour || internal.tm_mday != calendar.day ||
+        internal.tm_mon != calendar.month || internal.tm_year != calendar.year) {
+        R_RETURN(ResultTimeZoneNotFound);
+    }
+
+    if (res != 0) {
+        ASSERT(false);
+    }
+
+    out_times[0] = time;
+    if (out_times_count < 2) {
+        out_count = 1;
+        R_SUCCEED();
+    }
+
+    s64 time2{};
+    if (internal.time_index > 0 && GetTimeZoneTime(time2, rule, time, internal.time_index, -1)) {
+        out_times[1] = time2;
+        out_count = 2;
+        R_SUCCEED();
+    }
+
+    if (((internal.time_index + 1) < rule.timecnt) &&
+        GetTimeZoneTime(time2, rule, time, internal.time_index, 1)) {
+        out_times[1] = time2;
+        out_count = 2;
+        R_SUCCEED();
+    }
+
+    out_count = 1;
+    R_SUCCEED();
+}
+
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/time_zone.h
+++ b/src/core/hle/service/psc/time/time_zone.h
@@ -0,0 +1,62 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <mutex>
+#include <span>
+
+#include <tz/tz.h>
+#include "core/hle/service/psc/time/common.h"
+
+namespace Service::PSC::Time {
+
+class TimeZone {
+public:
+    TimeZone() = default;
+
+    bool IsInitialized() const {
+        return m_initialized;
+    }
+
+    void SetInitialized() {
+        m_initialized = true;
+    }
+
+    void SetTimePoint(SteadyClockTimePoint& time_point);
+    void SetTotalLocationNameCount(u32 count);
+    void SetRuleVersion(RuleVersion& rule_version);
+    Result GetLocationName(LocationName& out_name);
+    Result GetTotalLocationCount(u32& out_count);
+    Result GetRuleVersion(RuleVersion& out_rule_version);
+    Result GetTimePoint(SteadyClockTimePoint& out_time_point);
+
+    Result ToCalendarTime(CalendarTime& out_calendar_time,
+                          CalendarAdditionalInfo& out_additional_info, s64 time, Tz::Rule& rule);
+    Result ToCalendarTimeWithMyRule(CalendarTime& calendar_time,
+                                    CalendarAdditionalInfo& calendar_additional, s64 time);
+    Result ParseBinary(LocationName& name, std::span<const u8> binary);
+    Result ParseBinaryInto(Tz::Rule& out_rule, std::span<const u8> binary);
+    Result ToPosixTime(u32& out_count, std::span<s64, 2> out_times, u32 out_times_count,
+                       CalendarTime& calendar, Tz::Rule& rule);
+    Result ToPosixTimeWithMyRule(u32& out_count, std::span<s64, 2> out_times, u32 out_times_count,
+                                 CalendarTime& calendar);
+
+private:
+    Result ParseBinaryImpl(Tz::Rule& out_rule, std::span<const u8> binary);
+    Result ToCalendarTimeImpl(CalendarTime& out_calendar_time,
+                              CalendarAdditionalInfo& out_additional_info, s64 time,
+                              Tz::Rule& rule);
+    Result ToPosixTimeImpl(u32& out_count, std::span<s64, 2> out_times, u32 out_times_count,
+                           CalendarTime& calendar, Tz::Rule& rule, s32 is_dst);
+
+    bool m_initialized{};
+    std::recursive_mutex m_mutex;
+    LocationName m_location{};
+    Tz::Rule m_my_rule{};
+    SteadyClockTimePoint m_steady_clock_time_point{};
+    u32 m_total_location_name_count{};
+    RuleVersion m_rule_version{};
+};
+
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/time_zone_service.cpp
+++ b/src/core/hle/service/psc/time/time_zone_service.cpp
@@ -0,0 +1,289 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <tz/tz.h>
+#include "core/core.h"
+#include "core/hle/service/psc/time/time_zone_service.h"
+
+namespace Service::PSC::Time {
+
+TimeZoneService::TimeZoneService(Core::System& system_, StandardSteadyClockCore& clock_core,
+                                 TimeZone& time_zone, bool can_write_timezone_device_location)
+    : ServiceFramework{system_, "ITimeZoneService"}, m_system{system}, m_clock_core{clock_core},
+      m_time_zone{time_zone}, m_can_write_timezone_device_location{
+                                  can_write_timezone_device_location} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0,   &TimeZoneService::Handle_GetDeviceLocationName, "GetDeviceLocationName"},
+        {1,   &TimeZoneService::Handle_SetDeviceLocationName, "SetDeviceLocationName"},
+        {2,   &TimeZoneService::Handle_GetTotalLocationNameCount, "GetTotalLocationNameCount"},
+        {3,   &TimeZoneService::Handle_LoadLocationNameList, "LoadLocationNameList"},
+        {4,   &TimeZoneService::Handle_LoadTimeZoneRule, "LoadTimeZoneRule"},
+        {5,   &TimeZoneService::Handle_GetTimeZoneRuleVersion, "GetTimeZoneRuleVersion"},
+        {6,   &TimeZoneService::Handle_GetDeviceLocationNameAndUpdatedTime, "GetDeviceLocationNameAndUpdatedTime"},
+        {7,   &TimeZoneService::Handle_SetDeviceLocationNameWithTimeZoneRule, "SetDeviceLocationNameWithTimeZoneRule"},
+        {8,   &TimeZoneService::Handle_ParseTimeZoneBinary, "ParseTimeZoneBinary"},
+        {20,  &TimeZoneService::Handle_GetDeviceLocationNameOperationEventReadableHandle, "GetDeviceLocationNameOperationEventReadableHandle"},
+        {100, &TimeZoneService::Handle_ToCalendarTime, "ToCalendarTime"},
+        {101, &TimeZoneService::Handle_ToCalendarTimeWithMyRule, "ToCalendarTimeWithMyRule"},
+        {201, &TimeZoneService::Handle_ToPosixTime, "ToPosixTime"},
+        {202, &TimeZoneService::Handle_ToPosixTimeWithMyRule, "ToPosixTimeWithMyRule"},
+    };
+    // clang-format on
+    RegisterHandlers(functions);
+}
+
+void TimeZoneService::Handle_GetDeviceLocationName(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    LocationName name{};
+    auto res = GetDeviceLocationName(name);
+
+    IPC::ResponseBuilder rb{ctx, 2 + sizeof(LocationName) / sizeof(u32)};
+    rb.Push(res);
+    rb.PushRaw<LocationName>(name);
+}
+
+void TimeZoneService::Handle_SetDeviceLocationName(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    [[maybe_unused]] auto name{rp.PopRaw<LocationName>()};
+
+    if (!m_can_write_timezone_device_location) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(ResultPermissionDenied);
+        return;
+    }
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultNotImplemented);
+}
+
+void TimeZoneService::Handle_GetTotalLocationNameCount(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    u32 count{};
+    auto res = GetTotalLocationNameCount(count);
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(res);
+    rb.Push(count);
+}
+
+void TimeZoneService::Handle_LoadLocationNameList(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultNotImplemented);
+}
+
+void TimeZoneService::Handle_LoadTimeZoneRule(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultNotImplemented);
+}
+
+void TimeZoneService::Handle_GetTimeZoneRuleVersion(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    RuleVersion rule_version{};
+    auto res = GetTimeZoneRuleVersion(rule_version);
+
+    IPC::ResponseBuilder rb{ctx, 2 + sizeof(RuleVersion) / sizeof(u32)};
+    rb.Push(res);
+    rb.PushRaw<RuleVersion>(rule_version);
+}
+
+void TimeZoneService::Handle_GetDeviceLocationNameAndUpdatedTime(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    LocationName name{};
+    SteadyClockTimePoint time_point{};
+    auto res = GetDeviceLocationNameAndUpdatedTime(time_point, name);
+
+    IPC::ResponseBuilder rb{ctx, 2 + (sizeof(LocationName) / sizeof(u32)) +
+                                     (sizeof(SteadyClockTimePoint) / sizeof(u32))};
+    rb.Push(res);
+    rb.PushRaw<LocationName>(name);
+    rb.PushRaw<SteadyClockTimePoint>(time_point);
+}
+
+void TimeZoneService::Handle_SetDeviceLocationNameWithTimeZoneRule(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto name{rp.PopRaw<LocationName>()};
+
+    auto binary{ctx.ReadBuffer()};
+    auto res = SetDeviceLocationNameWithTimeZoneRule(name, binary);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void TimeZoneService::Handle_ParseTimeZoneBinary(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    auto binary{ctx.ReadBuffer()};
+
+    Tz::Rule rule{};
+    auto res = ParseTimeZoneBinary(rule, binary);
+
+    ctx.WriteBuffer(rule);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void TimeZoneService::Handle_GetDeviceLocationNameOperationEventReadableHandle(
+    HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultNotImplemented);
+}
+
+void TimeZoneService::Handle_ToCalendarTime(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto time{rp.Pop<s64>()};
+
+    auto rule_buffer{ctx.ReadBuffer()};
+    Tz::Rule rule{};
+    std::memcpy(&rule, rule_buffer.data(), sizeof(Tz::Rule));
+
+    CalendarTime calendar_time{};
+    CalendarAdditionalInfo additional_info{};
+    auto res = ToCalendarTime(calendar_time, additional_info, time, rule);
+
+    IPC::ResponseBuilder rb{ctx, 2 + (sizeof(CalendarTime) / sizeof(u32)) +
+                                     (sizeof(CalendarAdditionalInfo) / sizeof(u32))};
+    rb.Push(res);
+    rb.PushRaw<CalendarTime>(calendar_time);
+    rb.PushRaw<CalendarAdditionalInfo>(additional_info);
+}
+
+void TimeZoneService::Handle_ToCalendarTimeWithMyRule(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto time{rp.Pop<s64>()};
+
+    CalendarTime calendar_time{};
+    CalendarAdditionalInfo additional_info{};
+    auto res = ToCalendarTimeWithMyRule(calendar_time, additional_info, time);
+
+    IPC::ResponseBuilder rb{ctx, 2 + (sizeof(CalendarTime) / sizeof(u32)) +
+                                     (sizeof(CalendarAdditionalInfo) / sizeof(u32))};
+    rb.Push(res);
+    rb.PushRaw<CalendarTime>(calendar_time);
+    rb.PushRaw<CalendarAdditionalInfo>(additional_info);
+}
+
+void TimeZoneService::Handle_ToPosixTime(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto calendar{rp.PopRaw<CalendarTime>()};
+
+    auto binary{ctx.ReadBuffer()};
+
+    Tz::Rule rule{};
+    std::memcpy(&rule, binary.data(), sizeof(Tz::Rule));
+
+    u32 count{};
+    std::array<s64, 2> times{};
+    u32 times_count{static_cast<u32>(ctx.GetWriteBufferSize() / sizeof(s64))};
+
+    auto res = ToPosixTime(count, times, times_count, calendar, rule);
+
+    ctx.WriteBuffer(times);
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(res);
+    rb.Push(count);
+}
+
+void TimeZoneService::Handle_ToPosixTimeWithMyRule(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto calendar{rp.PopRaw<CalendarTime>()};
+
+    u32 count{};
+    std::array<s64, 2> times{};
+    u32 times_count{static_cast<u32>(ctx.GetWriteBufferSize() / sizeof(s64))};
+
+    auto res = ToPosixTimeWithMyRule(count, times, times_count, calendar);
+
+    ctx.WriteBuffer(times);
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(res);
+    rb.Push(count);
+}
+
+// =============================== Implementations ===========================
+
+Result TimeZoneService::GetDeviceLocationName(LocationName& out_location_name) {
+    R_RETURN(m_time_zone.GetLocationName(out_location_name));
+}
+
+Result TimeZoneService::GetTotalLocationNameCount(u32& out_count) {
+    R_RETURN(m_time_zone.GetTotalLocationCount(out_count));
+}
+
+Result TimeZoneService::GetTimeZoneRuleVersion(RuleVersion& out_rule_version) {
+    R_RETURN(m_time_zone.GetRuleVersion(out_rule_version));
+}
+
+Result TimeZoneService::GetDeviceLocationNameAndUpdatedTime(SteadyClockTimePoint& out_time_point,
+                                                            LocationName& location_name) {
+    R_TRY(m_time_zone.GetLocationName(location_name));
+    R_RETURN(m_time_zone.GetTimePoint(out_time_point));
+}
+
+Result TimeZoneService::SetDeviceLocationNameWithTimeZoneRule(LocationName& location_name,
+                                                              std::span<const u8> binary) {
+    R_UNLESS(m_can_write_timezone_device_location, ResultPermissionDenied);
+    R_TRY(m_time_zone.ParseBinary(location_name, binary));
+
+    SteadyClockTimePoint time_point{};
+    R_TRY(m_clock_core.GetCurrentTimePoint(time_point));
+
+    m_time_zone.SetTimePoint(time_point);
+    R_SUCCEED();
+}
+
+Result TimeZoneService::ParseTimeZoneBinary(Tz::Rule& out_rule, std::span<const u8> binary) {
+    R_RETURN(m_time_zone.ParseBinaryInto(out_rule, binary));
+}
+
+Result TimeZoneService::ToCalendarTime(CalendarTime& out_calendar_time,
+                                       CalendarAdditionalInfo& out_additional_info, s64 time,
+                                       Tz::Rule& rule) {
+    R_RETURN(m_time_zone.ToCalendarTime(out_calendar_time, out_additional_info, time, rule));
+}
+
+Result TimeZoneService::ToCalendarTimeWithMyRule(CalendarTime& out_calendar_time,
+                                                 CalendarAdditionalInfo& out_additional_info,
+                                                 s64 time) {
+    R_RETURN(m_time_zone.ToCalendarTimeWithMyRule(out_calendar_time, out_additional_info, time));
+}
+
+Result TimeZoneService::ToPosixTime(u32& out_count, std::span<s64, 2> out_times,
+                                    u32 out_times_count, CalendarTime& calendar_time,
+                                    Tz::Rule& rule) {
+    R_RETURN(m_time_zone.ToPosixTime(out_count, out_times, out_times_count, calendar_time, rule));
+}
+
+Result TimeZoneService::ToPosixTimeWithMyRule(u32& out_count, std::span<s64, 2> out_times,
+                                              u32 out_times_count, CalendarTime& calendar_time) {
+    R_RETURN(
+        m_time_zone.ToPosixTimeWithMyRule(out_count, out_times, out_times_count, calendar_time));
+}
+
+} // namespace Service::PSC::Time
--- a/src/core/hle/service/psc/time/time_zone_service.h
+++ b/src/core/hle/service/psc/time/time_zone_service.h
@@ -0,0 +1,69 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/service/ipc_helpers.h"
+#include "core/hle/service/psc/time/common.h"
+#include "core/hle/service/psc/time/manager.h"
+#include "core/hle/service/server_manager.h"
+#include "core/hle/service/service.h"
+
+namespace Core {
+class System;
+}
+
+namespace Tz {
+struct Rule;
+}
+
+namespace Service::PSC::Time {
+
+class TimeZoneService final : public ServiceFramework<TimeZoneService> {
+public:
+    explicit TimeZoneService(Core::System& system, StandardSteadyClockCore& clock_core,
+                             TimeZone& time_zone, bool can_write_timezone_device_location);
+
+    ~TimeZoneService() override = default;
+
+    Result GetDeviceLocationName(LocationName& out_location_name);
+    Result GetTotalLocationNameCount(u32& out_count);
+    Result GetTimeZoneRuleVersion(RuleVersion& out_rule_version);
+    Result GetDeviceLocationNameAndUpdatedTime(SteadyClockTimePoint& out_time_point,
+                                               LocationName& location_name);
+    Result SetDeviceLocationNameWithTimeZoneRule(LocationName& location_name,
+                                                 std::span<const u8> binary);
+    Result ParseTimeZoneBinary(Tz::Rule& out_rule, std::span<const u8> binary);
+    Result ToCalendarTime(CalendarTime& out_calendar_time,
+                          CalendarAdditionalInfo& out_additional_info, s64 time, Tz::Rule& rule);
+    Result ToCalendarTimeWithMyRule(CalendarTime& out_calendar_time,
+                                    CalendarAdditionalInfo& out_additional_info, s64 time);
+    Result ToPosixTime(u32& out_count, std::span<s64, 2> out_times, u32 out_times_count,
+                       CalendarTime& calendar_time, Tz::Rule& rule);
+    Result ToPosixTimeWithMyRule(u32& out_count, std::span<s64, 2> out_times, u32 out_times_count,
+                                 CalendarTime& calendar_time);
+
+private:
+    void Handle_GetDeviceLocationName(HLERequestContext& ctx);
+    void Handle_SetDeviceLocationName(HLERequestContext& ctx);
+    void Handle_GetTotalLocationNameCount(HLERequestContext& ctx);
+    void Handle_LoadLocationNameList(HLERequestContext& ctx);
+    void Handle_LoadTimeZoneRule(HLERequestContext& ctx);
+    void Handle_GetTimeZoneRuleVersion(HLERequestContext& ctx);
+    void Handle_GetDeviceLocationNameAndUpdatedTime(HLERequestContext& ctx);
+    void Handle_SetDeviceLocationNameWithTimeZoneRule(HLERequestContext& ctx);
+    void Handle_ParseTimeZoneBinary(HLERequestContext& ctx);
+    void Handle_GetDeviceLocationNameOperationEventReadableHandle(HLERequestContext& ctx);
+    void Handle_ToCalendarTime(HLERequestContext& ctx);
+    void Handle_ToCalendarTimeWithMyRule(HLERequestContext& ctx);
+    void Handle_ToPosixTime(HLERequestContext& ctx);
+    void Handle_ToPosixTimeWithMyRule(HLERequestContext& ctx);
+
+    Core::System& m_system;
+
+    StandardSteadyClockCore& m_clock_core;
+    TimeZone& m_time_zone;
+    bool m_can_write_timezone_device_location;
+};
+
+} // namespace Service::PSC::Time