Move solution and projects to src

4 files changed, 731 insertions, 0 deletions

diff --git a/src/Ryujinx.HLE/HOS/Services/Time/StaticService/ISteadyClock.cs b/src/Ryujinx.HLE/HOS/Services/Time/StaticService/ISteadyClock.cs
new file mode 100644
index 00000000..97d7884e
--- /dev/null
+++ b/src/Ryujinx.HLE/HOS/Services/Time/StaticService/ISteadyClock.cs
@@ -0,0 +1,155 @@
+using Ryujinx.Common;
+using Ryujinx.Cpu;
+using Ryujinx.HLE.HOS.Services.Time.Clock;
+
+namespace Ryujinx.HLE.HOS.Services.Time.StaticService
+{
+    class ISteadyClock : IpcService
+    {
+        private SteadyClockCore _steadyClock;
+        private bool            _writePermission;
+        private bool            _bypassUninitializedClock;
+
+        public ISteadyClock(SteadyClockCore steadyClock, bool writePermission, bool bypassUninitializedClock)
+        {
+            _steadyClock              = steadyClock;
+            _writePermission          = writePermission;
+            _bypassUninitializedClock = bypassUninitializedClock;
+        }
+
+        [CommandCmif(0)]
+        // GetCurrentTimePoint() -> nn::time::SteadyClockTimePoint
+        public ResultCode GetCurrentTimePoint(ServiceCtx context)
+        {
+            if (!_bypassUninitializedClock && !_steadyClock.IsInitialized())
+            {
+                return ResultCode.UninitializedClock;
+            }
+
+            ITickSource tickSource = context.Device.System.TickSource;
+
+            SteadyClockTimePoint currentTimePoint = _steadyClock.GetCurrentTimePoint(tickSource);
+
+            context.ResponseData.WriteStruct(currentTimePoint);
+
+            return ResultCode.Success;
+        }
+
+        [CommandCmif(2)]
+        // GetTestOffset() -> nn::TimeSpanType
+        public ResultCode GetTestOffset(ServiceCtx context)
+        {
+            if (!_bypassUninitializedClock && !_steadyClock.IsInitialized())
+            {
+                return ResultCode.UninitializedClock;
+            }
+
+            context.ResponseData.WriteStruct(_steadyClock.GetTestOffset());
+
+            return ResultCode.Success;
+        }
+
+        [CommandCmif(3)]
+        // SetTestOffset(nn::TimeSpanType)
+        public ResultCode SetTestOffset(ServiceCtx context)
+        {
+            if (!_writePermission)
+            {
+                return ResultCode.PermissionDenied;
+            }
+
+            if (!_bypassUninitializedClock && !_steadyClock.IsInitialized())
+            {
+                return ResultCode.UninitializedClock;
+            }
+
+            TimeSpanType testOffset = context.RequestData.ReadStruct<TimeSpanType>();
+
+            _steadyClock.SetTestOffset(testOffset);
+
+            return ResultCode.Success;
+        }
+
+        [CommandCmif(100)] // 2.0.0+
+        // GetRtcValue() -> u64
+        public ResultCode GetRtcValue(ServiceCtx context)
+        {
+            if (!_bypassUninitializedClock && !_steadyClock.IsInitialized())
+            {
+                return ResultCode.UninitializedClock;
+            }
+
+            ResultCode result = _steadyClock.GetRtcValue(out ulong rtcValue);
+
+            if (result == ResultCode.Success)
+            {
+                context.ResponseData.Write(rtcValue);
+            }
+
+            return result;
+        }
+
+        [CommandCmif(101)] // 2.0.0+
+        // IsRtcResetDetected() -> bool
+        public ResultCode IsRtcResetDetected(ServiceCtx context)
+        {
+            if (!_bypassUninitializedClock && !_steadyClock.IsInitialized())
+            {
+                return ResultCode.UninitializedClock;
+            }
+
+            context.ResponseData.Write(_steadyClock.IsRtcResetDetected());
+
+            return ResultCode.Success;
+        }
+
+        [CommandCmif(102)] // 2.0.0+
+        // GetSetupResultValue() -> u32
+        public ResultCode GetSetupResultValue(ServiceCtx context)
+        {
+            if (!_bypassUninitializedClock && !_steadyClock.IsInitialized())
+            {
+                return ResultCode.UninitializedClock;
+            }
+
+            context.ResponseData.Write((uint)_steadyClock.GetSetupResultValue());
+
+            return ResultCode.Success;
+        }
+
+        [CommandCmif(200)] // 3.0.0+
+        // GetInternalOffset() -> nn::TimeSpanType
+        public ResultCode GetInternalOffset(ServiceCtx context)
+        {
+            if (!_bypassUninitializedClock && !_steadyClock.IsInitialized())
+            {
+                return ResultCode.UninitializedClock;
+            }
+
+            context.ResponseData.WriteStruct(_steadyClock.GetInternalOffset());
+
+            return ResultCode.Success;
+        }
+
+        [CommandCmif(201)] // 3.0.0-3.0.2
+        // SetInternalOffset(nn::TimeSpanType)
+        public ResultCode SetInternalOffset(ServiceCtx context)
+        {
+            if (!_writePermission)
+            {
+                return ResultCode.PermissionDenied;
+            }
+
+            if (!_bypassUninitializedClock && !_steadyClock.IsInitialized())
+            {
+                return ResultCode.UninitializedClock;
+            }
+
+            TimeSpanType internalOffset = context.RequestData.ReadStruct<TimeSpanType>();
+
+            _steadyClock.SetInternalOffset(internalOffset);
+
+            return ResultCode.Success;
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/Ryujinx.HLE/HOS/Services/Time/StaticService/ISystemClock.cs b/src/Ryujinx.HLE/HOS/Services/Time/StaticService/ISystemClock.cs
new file mode 100644
index 00000000..3cd0a4a6
--- /dev/null
+++ b/src/Ryujinx.HLE/HOS/Services/Time/StaticService/ISystemClock.cs
@@ -0,0 +1,131 @@
+using Ryujinx.Common;
+using Ryujinx.Cpu;
+using Ryujinx.HLE.HOS.Ipc;
+using Ryujinx.HLE.HOS.Kernel.Threading;
+using Ryujinx.HLE.HOS.Services.Time.Clock;
+using Ryujinx.Horizon.Common;
+using System;
+
+namespace Ryujinx.HLE.HOS.Services.Time.StaticService
+{
+    class ISystemClock : IpcService
+    {
+        private SystemClockCore _clockCore;
+        private bool            _writePermission;
+        private bool            _bypassUninitializedClock;
+        private int             _operationEventReadableHandle;
+
+        public ISystemClock(SystemClockCore clockCore, bool writePermission, bool bypassUninitializedClock)
+        {
+            _clockCore                    = clockCore;
+            _writePermission              = writePermission;
+            _bypassUninitializedClock     = bypassUninitializedClock;
+            _operationEventReadableHandle = 0;
+        }
+
+        [CommandCmif(0)]
+        // GetCurrentTime() -> nn::time::PosixTime
+        public ResultCode GetCurrentTime(ServiceCtx context)
+        {
+            if (!_bypassUninitializedClock && !_clockCore.IsInitialized())
+            {
+                return ResultCode.UninitializedClock;
+            }
+
+            ITickSource tickSource = context.Device.System.TickSource;
+
+            ResultCode result = _clockCore.GetCurrentTime(tickSource, out long posixTime);
+
+            if (result == ResultCode.Success)
+            {
+                context.ResponseData.Write(posixTime);
+            }
+
+            return result;
+        }
+
+        [CommandCmif(1)]
+        // SetCurrentTime(nn::time::PosixTime)
+        public ResultCode SetCurrentTime(ServiceCtx context)
+        {
+            if (!_writePermission)
+            {
+                return ResultCode.PermissionDenied;
+            }
+
+            if (!_bypassUninitializedClock && !_clockCore.IsInitialized())
+            {
+                return ResultCode.UninitializedClock;
+            }
+
+            long posixTime = context.RequestData.ReadInt64();
+
+            ITickSource tickSource = context.Device.System.TickSource;
+
+            return _clockCore.SetCurrentTime(tickSource, posixTime);
+        }
+
+        [CommandCmif(2)]
+        // GetClockContext() -> nn::time::SystemClockContext
+        public ResultCode GetSystemClockContext(ServiceCtx context)
+        {
+            if (!_bypassUninitializedClock && !_clockCore.IsInitialized())
+            {
+                return ResultCode.UninitializedClock;
+            }
+
+            ITickSource tickSource = context.Device.System.TickSource;
+
+            ResultCode result = _clockCore.GetClockContext(tickSource, out SystemClockContext clockContext);
+
+            if (result == ResultCode.Success)
+            {
+                context.ResponseData.WriteStruct(clockContext);
+            }
+
+            return result;
+        }
+
+        [CommandCmif(3)]
+        // SetClockContext(nn::time::SystemClockContext)
+        public ResultCode SetSystemClockContext(ServiceCtx context)
+        {
+            if (!_writePermission)
+            {
+                return ResultCode.PermissionDenied;
+            }
+
+            if (!_bypassUninitializedClock && !_clockCore.IsInitialized())
+            {
+                return ResultCode.UninitializedClock;
+            }
+
+            SystemClockContext clockContext = context.RequestData.ReadStruct<SystemClockContext>();
+
+            ResultCode result = _clockCore.SetSystemClockContext(clockContext);
+
+            return result;
+        }
+
+        [CommandCmif(4)] // 9.0.0+
+        // GetOperationEventReadableHandle() -> handle<copy>
+        public ResultCode GetOperationEventReadableHandle(ServiceCtx context)
+        {
+            if (_operationEventReadableHandle == 0)
+            {
+                KEvent kEvent = new KEvent(context.Device.System.KernelContext);
+
+                _clockCore.RegisterOperationEvent(kEvent.WritableEvent);
+
+                if (context.Process.HandleTable.GenerateHandle(kEvent.ReadableEvent, out _operationEventReadableHandle) != Result.Success)
+                {
+                    throw new InvalidOperationException("Out of handles!");
+                }
+            }
+
+            context.Response.HandleDesc = IpcHandleDesc.MakeCopy(_operationEventReadableHandle);
+
+            return ResultCode.Success;
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/Ryujinx.HLE/HOS/Services/Time/StaticService/ITimeZoneServiceForGlue.cs b/src/Ryujinx.HLE/HOS/Services/Time/StaticService/ITimeZoneServiceForGlue.cs
new file mode 100644
index 00000000..96a7e604
--- /dev/null
+++ b/src/Ryujinx.HLE/HOS/Services/Time/StaticService/ITimeZoneServiceForGlue.cs
@@ -0,0 +1,142 @@
+using Ryujinx.Common.Logging;
+using Ryujinx.Cpu;
+using Ryujinx.HLE.HOS.Services.Time.TimeZone;
+using Ryujinx.HLE.Utilities;
+using Ryujinx.Memory;
+using System;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+using System.Text;
+
+namespace Ryujinx.HLE.HOS.Services.Time.StaticService
+{
+    class ITimeZoneServiceForGlue : IpcService
+    {
+        private TimeZoneContentManager _timeZoneContentManager;
+        private ITimeZoneServiceForPsc _inner;
+        private bool                   _writePermission;
+
+        public ITimeZoneServiceForGlue(TimeZoneContentManager timeZoneContentManager, bool writePermission)
+        {
+            _timeZoneContentManager = timeZoneContentManager;
+            _writePermission        = writePermission;
+            _inner                  = new ITimeZoneServiceForPsc(timeZoneContentManager.Manager, writePermission);
+        }
+
+        [CommandCmif(0)]
+        // GetDeviceLocationName() -> nn::time::LocationName
+        public ResultCode GetDeviceLocationName(ServiceCtx context)
+        {
+            return _inner.GetDeviceLocationName(context);
+        }
+
+        [CommandCmif(1)]
+        // SetDeviceLocationName(nn::time::LocationName)
+        public ResultCode SetDeviceLocationName(ServiceCtx context)
+        {
+            if (!_writePermission)
+            {
+                return ResultCode.PermissionDenied;
+            }
+
+            string locationName = StringUtils.ReadInlinedAsciiString(context.RequestData, 0x24);
+
+            return _timeZoneContentManager.SetDeviceLocationName(locationName);
+        }
+
+        [CommandCmif(2)]
+        // GetTotalLocationNameCount() -> u32
+        public ResultCode GetTotalLocationNameCount(ServiceCtx context)
+        {
+            return _inner.GetTotalLocationNameCount(context);
+        }
+
+        [CommandCmif(3)]
+        // LoadLocationNameList(u32 index) -> (u32 outCount, buffer<nn::time::LocationName, 6>)
+        public ResultCode LoadLocationNameList(ServiceCtx context)
+        {
+            uint  index          = context.RequestData.ReadUInt32();
+            ulong bufferPosition = context.Request.ReceiveBuff[0].Position;
+            ulong bufferSize     = context.Request.ReceiveBuff[0].Size;
+
+            ResultCode errorCode = _timeZoneContentManager.LoadLocationNameList(index, out string[] locationNameArray, (uint)bufferSize / 0x24);
+
+            if (errorCode == 0)
+            {
+                uint offset = 0;
+
+                foreach (string locationName in locationNameArray)
+                {
+                    int padding = 0x24 - locationName.Length;
+
+                    if (padding < 0)
+                    {
+                        return ResultCode.LocationNameTooLong;
+                    }
+
+                    context.Memory.Write(bufferPosition + offset, Encoding.ASCII.GetBytes(locationName));
+                    MemoryHelper.FillWithZeros(context.Memory, bufferPosition + offset + (ulong)locationName.Length, padding);
+
+                    offset += 0x24;
+                }
+
+                context.ResponseData.Write((uint)locationNameArray.Length);
+            }
+
+            return errorCode;
+        }
+
+        [CommandCmif(4)]
+        // LoadTimeZoneRule(nn::time::LocationName locationName) -> buffer<nn::time::TimeZoneRule, 0x16>
+        public ResultCode LoadTimeZoneRule(ServiceCtx context)
+        {
+            ulong bufferPosition = context.Request.ReceiveBuff[0].Position;
+            ulong bufferSize     = context.Request.ReceiveBuff[0].Size;
+
+            if (bufferSize != 0x4000)
+            {
+                // TODO: find error code here
+                Logger.Error?.Print(LogClass.ServiceTime, $"TimeZoneRule buffer size is 0x{bufferSize:x} (expected 0x4000)");
+
+                throw new InvalidOperationException();
+            }
+
+            string locationName = StringUtils.ReadInlinedAsciiString(context.RequestData, 0x24);
+
+            using (WritableRegion region = context.Memory.GetWritableRegion(bufferPosition, Unsafe.SizeOf<TimeZoneRule>()))
+            {
+                ref TimeZoneRule rules = ref MemoryMarshal.Cast<byte, TimeZoneRule>(region.Memory.Span)[0];
+
+                return _timeZoneContentManager.LoadTimeZoneRule(ref rules, locationName);
+            }
+        }
+
+        [CommandCmif(100)]
+        // ToCalendarTime(nn::time::PosixTime time, buffer<nn::time::TimeZoneRule, 0x15> rules) -> (nn::time::CalendarTime, nn::time::sf::CalendarAdditionalInfo)
+        public ResultCode ToCalendarTime(ServiceCtx context)
+        {
+            return _inner.ToCalendarTime(context);
+        }
+
+        [CommandCmif(101)]
+        // ToCalendarTimeWithMyRule(nn::time::PosixTime) -> (nn::time::CalendarTime, nn::time::sf::CalendarAdditionalInfo)
+        public ResultCode ToCalendarTimeWithMyRule(ServiceCtx context)
+        {
+            return _inner.ToCalendarTimeWithMyRule(context);
+        }
+
+        [CommandCmif(201)]
+        // ToPosixTime(nn::time::CalendarTime calendarTime, buffer<nn::time::TimeZoneRule, 0x15> rules) -> (u32 outCount, buffer<nn::time::PosixTime, 0xa>)
+        public ResultCode ToPosixTime(ServiceCtx context)
+        {
+            return _inner.ToPosixTime(context);
+        }
+
+        [CommandCmif(202)]
+        // ToPosixTimeWithMyRule(nn::time::CalendarTime calendarTime) -> (u32 outCount, buffer<nn::time::PosixTime, 0xa>)
+        public ResultCode ToPosixTimeWithMyRule(ServiceCtx context)
+        {
+            return _inner.ToPosixTimeWithMyRule(context);
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/Ryujinx.HLE/HOS/Services/Time/StaticService/ITimeZoneServiceForPsc.cs b/src/Ryujinx.HLE/HOS/Services/Time/StaticService/ITimeZoneServiceForPsc.cs
new file mode 100644
index 00000000..3c9ac71f
--- /dev/null
+++ b/src/Ryujinx.HLE/HOS/Services/Time/StaticService/ITimeZoneServiceForPsc.cs
@@ -0,0 +1,303 @@
+using Ryujinx.Common;
+using Ryujinx.Common.Logging;
+using Ryujinx.HLE.HOS.Services.Time.Clock;
+using Ryujinx.HLE.HOS.Services.Time.TimeZone;
+using Ryujinx.HLE.Utilities;
+using Ryujinx.Memory;
+using System;
+using System.Diagnostics;
+using System.IO;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.HLE.HOS.Services.Time.StaticService
+{
+    class ITimeZoneServiceForPsc : IpcService
+    {
+        private TimeZoneManager _timeZoneManager;
+        private bool            _writePermission;
+
+        public ITimeZoneServiceForPsc(TimeZoneManager timeZoneManager, bool writePermission)
+        {
+            _timeZoneManager = timeZoneManager;
+            _writePermission = writePermission;
+        }
+
+        [CommandCmif(0)]
+        // GetDeviceLocationName() -> nn::time::LocationName
+        public ResultCode GetDeviceLocationName(ServiceCtx context)
+        {
+            ResultCode result = _timeZoneManager.GetDeviceLocationName(out string deviceLocationName);
+
+            if (result == ResultCode.Success)
+            {
+                WriteLocationName(context, deviceLocationName);
+            }
+
+            return result;
+        }
+
+        [CommandCmif(1)]
+        // SetDeviceLocationName(nn::time::LocationName)
+        public ResultCode SetDeviceLocationName(ServiceCtx context)
+        {
+            if (!_writePermission)
+            {
+                return ResultCode.PermissionDenied;
+            }
+
+            return ResultCode.NotImplemented;
+        }
+
+        [CommandCmif(2)]
+        // GetTotalLocationNameCount() -> u32
+        public ResultCode GetTotalLocationNameCount(ServiceCtx context)
+        {
+            ResultCode result = _timeZoneManager.GetTotalLocationNameCount(out uint totalLocationNameCount);
+
+            if (result == ResultCode.Success)
+            {
+                context.ResponseData.Write(totalLocationNameCount);
+            }
+
+            return ResultCode.Success;
+        }
+
+        [CommandCmif(3)]
+        // LoadLocationNameList(u32 index) -> (u32 outCount, buffer<nn::time::LocationName, 6>)
+        public ResultCode LoadLocationNameList(ServiceCtx context)
+        {
+            return ResultCode.NotImplemented;
+        }
+
+        [CommandCmif(4)]
+        // LoadTimeZoneRule(nn::time::LocationName locationName) -> buffer<nn::time::TimeZoneRule, 0x16>
+        public ResultCode LoadTimeZoneRule(ServiceCtx context)
+        {
+            return ResultCode.NotImplemented;
+        }
+
+        [CommandCmif(5)] // 2.0.0+
+        // GetTimeZoneRuleVersion() -> nn::time::TimeZoneRuleVersion
+        public ResultCode GetTimeZoneRuleVersion(ServiceCtx context)
+        {
+            ResultCode result = _timeZoneManager.GetTimeZoneRuleVersion(out UInt128 timeZoneRuleVersion);
+
+            if (result == ResultCode.Success)
+            {
+                context.ResponseData.WriteStruct(timeZoneRuleVersion);
+            }
+
+            return result;
+        }
+
+        [CommandCmif(6)] // 5.0.0+
+        // GetDeviceLocationNameAndUpdatedTime() -> (nn::time::LocationName, nn::time::SteadyClockTimePoint)
+        public ResultCode GetDeviceLocationNameAndUpdatedTime(ServiceCtx context)
+        {
+            ResultCode result = _timeZoneManager.GetDeviceLocationName(out string deviceLocationName);
+
+            if (result == ResultCode.Success)
+            {
+                result = _timeZoneManager.GetUpdatedTime(out SteadyClockTimePoint timeZoneUpdateTimePoint);
+
+                if (result == ResultCode.Success)
+                {
+                    WriteLocationName(context, deviceLocationName);
+
+                    // Skip padding
+                    context.ResponseData.BaseStream.Position += 0x4;
+
+                    context.ResponseData.WriteStruct(timeZoneUpdateTimePoint);
+                }
+            }
+
+            return result;
+        }
+
+        [CommandCmif(7)] // 9.0.0+
+        // SetDeviceLocationNameWithTimeZoneRule(nn::time::LocationName locationName, buffer<nn::time::TimeZoneBinary, 0x21> timeZoneBinary)
+        public ResultCode SetDeviceLocationNameWithTimeZoneRule(ServiceCtx context)
+        {
+            if (!_writePermission)
+            {
+                return ResultCode.PermissionDenied;
+            }
+
+            (ulong bufferPosition, ulong bufferSize) = context.Request.GetBufferType0x21();
+
+            string locationName = StringUtils.ReadInlinedAsciiString(context.RequestData, 0x24);
+
+            ResultCode result;
+
+            byte[] temp = new byte[bufferSize];
+
+            context.Memory.Read(bufferPosition, temp);
+
+            using (MemoryStream timeZoneBinaryStream = new MemoryStream(temp))
+            {
+                result = _timeZoneManager.SetDeviceLocationNameWithTimeZoneRule(locationName, timeZoneBinaryStream);
+            }
+
+            return result;
+        }
+
+        [CommandCmif(8)] // 9.0.0+
+        // ParseTimeZoneBinary(buffer<nn::time::TimeZoneBinary, 0x21> timeZoneBinary) -> buffer<nn::time::TimeZoneRule, 0x16>
+        public ResultCode ParseTimeZoneBinary(ServiceCtx context)
+        {
+            (ulong bufferPosition, ulong bufferSize) = context.Request.GetBufferType0x21();
+
+            ulong timeZoneRuleBufferPosition = context.Request.ReceiveBuff[0].Position;
+            ulong timeZoneRuleBufferSize     = context.Request.ReceiveBuff[0].Size;
+
+            if (timeZoneRuleBufferSize != 0x4000)
+            {
+                // TODO: find error code here
+                Logger.Error?.Print(LogClass.ServiceTime, $"TimeZoneRule buffer size is 0x{timeZoneRuleBufferSize:x} (expected 0x4000)");
+
+                throw new InvalidOperationException();
+            }
+
+            ResultCode result;
+
+            byte[] temp = new byte[bufferSize];
+
+            context.Memory.Read(bufferPosition, temp);
+
+            using (MemoryStream timeZoneBinaryStream = new MemoryStream(temp))
+            {
+                using (WritableRegion region = context.Memory.GetWritableRegion(timeZoneRuleBufferPosition, Unsafe.SizeOf<TimeZoneRule>()))
+                {
+                    ref TimeZoneRule rule = ref MemoryMarshal.Cast<byte, TimeZoneRule>(region.Memory.Span)[0];
+
+                    result = _timeZoneManager.ParseTimeZoneRuleBinary(ref rule, timeZoneBinaryStream);
+                }
+            }
+
+            return result;
+        }
+
+        [CommandCmif(20)] // 9.0.0+
+        // GetDeviceLocationNameOperationEventReadableHandle() -> handle<copy>
+        public ResultCode GetDeviceLocationNameOperationEventReadableHandle(ServiceCtx context)
+        {
+            return ResultCode.NotImplemented;
+        }
+
+        [CommandCmif(100)]
+        // ToCalendarTime(nn::time::PosixTime time, buffer<nn::time::TimeZoneRule, 0x15> rules) -> (nn::time::CalendarTime, nn::time::sf::CalendarAdditionalInfo)
+        public ResultCode ToCalendarTime(ServiceCtx context)
+        {
+            long  posixTime      = context.RequestData.ReadInt64();
+            ulong bufferPosition = context.Request.SendBuff[0].Position;
+            ulong bufferSize     = context.Request.SendBuff[0].Size;
+
+            if (bufferSize != 0x4000)
+            {
+                // TODO: find error code here
+                Logger.Error?.Print(LogClass.ServiceTime, $"TimeZoneRule buffer size is 0x{bufferSize:x} (expected 0x4000)");
+
+                throw new InvalidOperationException();
+            }
+
+            ReadOnlySpan<TimeZoneRule> rules = MemoryMarshal.Cast<byte, TimeZoneRule>(context.Memory.GetSpan(bufferPosition, (int)bufferSize));
+
+            ResultCode resultCode = _timeZoneManager.ToCalendarTime(in rules[0], posixTime, out CalendarInfo calendar);
+
+            if (resultCode == 0)
+            {
+                context.ResponseData.WriteStruct(calendar);
+            }
+
+            return resultCode;
+        }
+
+        [CommandCmif(101)]
+        // ToCalendarTimeWithMyRule(nn::time::PosixTime) -> (nn::time::CalendarTime, nn::time::sf::CalendarAdditionalInfo)
+        public ResultCode ToCalendarTimeWithMyRule(ServiceCtx context)
+        {
+            long posixTime = context.RequestData.ReadInt64();
+
+            ResultCode resultCode = _timeZoneManager.ToCalendarTimeWithMyRules(posixTime, out CalendarInfo calendar);
+
+            if (resultCode == ResultCode.Success)
+            {
+                context.ResponseData.WriteStruct(calendar);
+            }
+
+            return resultCode;
+        }
+
+        [CommandCmif(201)]
+        // ToPosixTime(nn::time::CalendarTime calendarTime, buffer<nn::time::TimeZoneRule, 0x15> rules) -> (u32 outCount, buffer<nn::time::PosixTime, 0xa>)
+        public ResultCode ToPosixTime(ServiceCtx context)
+        {
+            ulong inBufferPosition = context.Request.SendBuff[0].Position;
+            ulong inBufferSize     = context.Request.SendBuff[0].Size;
+
+            CalendarTime calendarTime = context.RequestData.ReadStruct<CalendarTime>();
+
+            if (inBufferSize != 0x4000)
+            {
+                // TODO: find error code here
+                Logger.Error?.Print(LogClass.ServiceTime, $"TimeZoneRule buffer size is 0x{inBufferSize:x} (expected 0x4000)");
+
+                throw new InvalidOperationException();
+            }
+
+            ReadOnlySpan<TimeZoneRule> rules = MemoryMarshal.Cast<byte, TimeZoneRule>(context.Memory.GetSpan(inBufferPosition, (int)inBufferSize));
+
+            ResultCode resultCode = _timeZoneManager.ToPosixTime(in rules[0], calendarTime, out long posixTime);
+
+            if (resultCode == ResultCode.Success)
+            {
+                ulong outBufferPosition = context.Request.RecvListBuff[0].Position;
+                ulong outBufferSize     = context.Request.RecvListBuff[0].Size;
+
+                context.Memory.Write(outBufferPosition, posixTime);
+                context.ResponseData.Write(1);
+            }
+
+            return resultCode;
+        }
+
+        [CommandCmif(202)]
+        // ToPosixTimeWithMyRule(nn::time::CalendarTime calendarTime) -> (u32 outCount, buffer<nn::time::PosixTime, 0xa>)
+        public ResultCode ToPosixTimeWithMyRule(ServiceCtx context)
+        {
+            CalendarTime calendarTime = context.RequestData.ReadStruct<CalendarTime>();
+
+            ResultCode resultCode = _timeZoneManager.ToPosixTimeWithMyRules(calendarTime, out long posixTime);
+
+            if (resultCode == ResultCode.Success)
+            {
+                ulong outBufferPosition = context.Request.RecvListBuff[0].Position;
+                ulong outBufferSize     = context.Request.RecvListBuff[0].Size;
+
+                context.Memory.Write(outBufferPosition, posixTime);
+
+                // There could be only one result on one calendar as leap seconds aren't supported.
+                context.ResponseData.Write(1);
+            }
+
+            return resultCode;
+        }
+
+        private void WriteLocationName(ServiceCtx context, string locationName)
+        {
+            char[] locationNameArray = locationName.ToCharArray();
+
+            int padding = 0x24 - locationNameArray.Length;
+
+            Debug.Assert(padding >= 0, "LocationName exceeded limit (0x24 bytes)");
+
+            context.ResponseData.Write(locationNameArray);
+
+            for (int index = 0; index < padding; index++)
+            {
+                context.ResponseData.Write((byte)0);
+            }
+        }
+    }
+}