UI: Match System Time is now an active setting which you can toggle on/off.

src/Ryujinx.UI.Common/Configuration/ConfigurationFileFormat.cs

@@ -16,7 +16,7 @@ namespace Ryujinx.UI.Common.Configuration
         /// <summary>
         /// The current version of the file format
         /// </summary>
-        public const int CurrentVersion = 57;
+        public const int CurrentVersion = 58;
 
         /// <summary>
         /// Version of the configuration file format
@@ -143,6 +143,11 @@ namespace Ryujinx.UI.Common.Configuration
         /// </summary>
         public long SystemTimeOffset { get; set; }
 
+        /// <summary>
+        /// Instead of setting the time via configuration, use the values provided by the system.
+        /// </summary>
+        public bool MatchSystemTime { get; set; }
+
         /// <summary>
         /// Enables or disables Docked Mode
         /// </summary>

src/Ryujinx.UI.Common/Configuration/ConfigurationState.cs

@@ -325,6 +325,11 @@ namespace Ryujinx.UI.Common.Configuration
             /// </summary>
             public ReactiveObject<long> SystemTimeOffset { get; private set; }
 
+            /// <summary>
+            /// Instead of setting the time via configuration, use the values provided by the system.
+            /// </summary>
+            public ReactiveObject<bool> MatchSystemTime { get; private set; }
+
             /// <summary>
             /// Enables or disables Docked Mode
             /// </summary>
@@ -391,6 +396,9 @@ namespace Ryujinx.UI.Common.Configuration
                 Region = new ReactiveObject<Region>();
                 TimeZone = new ReactiveObject<string>();
                 SystemTimeOffset = new ReactiveObject<long>();
+                SystemTimeOffset.Event += static (sender, e) => LogValueChange(e, nameof(SystemTimeOffset));
+                MatchSystemTime = new ReactiveObject<bool>();
+                MatchSystemTime.Event += static (sender, e) => LogValueChange(e, nameof(MatchSystemTime));
                 EnableDockedMode = new ReactiveObject<bool>();
                 EnableDockedMode.Event += static (sender, e) => LogValueChange(e, nameof(EnableDockedMode));
                 EnablePtc = new ReactiveObject<bool>();
@@ -749,6 +757,7 @@ namespace Ryujinx.UI.Common.Configuration
                 SystemRegion = System.Region,
                 SystemTimeZone = System.TimeZone,
                 SystemTimeOffset = System.SystemTimeOffset,
+                MatchSystemTime = System.MatchSystemTime,
                 DockedMode = System.EnableDockedMode,
                 EnableDiscordIntegration = EnableDiscordIntegration,
                 CheckUpdatesOnStart = CheckUpdatesOnStart,
@@ -1630,6 +1639,15 @@ namespace Ryujinx.UI.Common.Configuration
                 configurationFileUpdated = true;
             }
             
+            if (configurationFileFormat.Version < 58)
+            {
+                Ryujinx.Common.Logging.Logger.Warning?.Print(LogClass.Application, $"Outdated configuration version {configurationFileFormat.Version}, migrating to version 58.");
+
+                configurationFileFormat.MatchSystemTime = false;
+
+                configurationFileUpdated = true;
+            }
+            
             Logger.EnableFileLog.Value = configurationFileFormat.EnableFileLog;
             Graphics.ResScale.Value = configurationFileFormat.ResScale;
             Graphics.ResScaleCustom.Value = configurationFileFormat.ResScaleCustom;
@@ -1656,6 +1674,7 @@ namespace Ryujinx.UI.Common.Configuration
             System.Region.Value = configurationFileFormat.SystemRegion;
             System.TimeZone.Value = configurationFileFormat.SystemTimeZone;
             System.SystemTimeOffset.Value = configurationFileFormat.SystemTimeOffset;
+            System.MatchSystemTime.Value = configurationFileFormat.MatchSystemTime;
             System.EnableDockedMode.Value = configurationFileFormat.DockedMode;
             EnableDiscordIntegration.Value = configurationFileFormat.EnableDiscordIntegration;
             CheckUpdatesOnStart.Value = configurationFileFormat.CheckUpdatesOnStart;

src/Ryujinx/AppHost.cs

@@ -923,7 +923,9 @@ namespace Ryujinx.Ava
                                                      ConfigurationState.Instance.System.EnableInternetAccess,
                                                      ConfigurationState.Instance.System.EnableFsIntegrityChecks ? IntegrityCheckLevel.ErrorOnInvalid : IntegrityCheckLevel.None,
                                                      ConfigurationState.Instance.System.FsGlobalAccessLogMode,
-                                                     ConfigurationState.Instance.System.SystemTimeOffset,
+                                                     ConfigurationState.Instance.System.MatchSystemTime 
+                                                         ? 0 
+                                                         : ConfigurationState.Instance.System.SystemTimeOffset,
                                                      ConfigurationState.Instance.System.TimeZone,
                                                      ConfigurationState.Instance.System.MemoryManagerMode,
                                                      ConfigurationState.Instance.System.IgnoreMissingServices,

src/Ryujinx/UI/ViewModels/SettingsViewModel.cs

@@ -331,6 +331,8 @@ namespace Ryujinx.Ava.UI.ViewModels
         //private DateTimeOffset _currentDate;
         //private TimeSpan _currentTime;
 
+        public bool MatchSystemTime { get; set; }
+
         public DateTimeOffset CurrentDate { get; set; }
 
         public TimeSpan CurrentTime { get; set; }
@@ -456,18 +458,6 @@ namespace Ryujinx.Ava.UI.ViewModels
             Dispatcher.UIThread.Post(() => OnPropertyChanged(nameof(PreferredGpuIndex)));
         }
 
-        public void MatchSystemTime()
-        {
-            var dto = DateTimeOffset.Now;
-
-            CurrentDate = new DateTimeOffset(dto.Year, dto.Month, dto.Day, 0, 0, 0, dto.Offset);
-            
-            CurrentTime = dto.TimeOfDay;
-            
-            OnPropertyChanged(nameof(CurrentDate));
-            OnPropertyChanged(nameof(CurrentTime));
-        }
-
         public async Task LoadTimeZones()
         {
             _timeZoneContentManager = new TimeZoneContentManager();
@@ -569,7 +559,9 @@ namespace Ryujinx.Ava.UI.ViewModels
             CurrentDate = currentDateTime.Date;
             CurrentTime = currentDateTime.TimeOfDay;
 
-            EnableCustomVSyncInterval = config.Graphics.EnableCustomVSyncInterval.Value;
+            MatchSystemTime = config.System.MatchSystemTime;
+
+            EnableCustomVSyncInterval = config.Graphics.EnableCustomVSyncInterval;
             CustomVSyncInterval = config.Graphics.CustomVSyncInterval;
             VSyncMode = config.Graphics.VSyncMode;
             EnableFsIntegrityChecks = config.System.EnableFsIntegrityChecks;
@@ -675,6 +667,7 @@ namespace Ryujinx.Ava.UI.ViewModels
                 config.System.TimeZone.Value = TimeZone;
             }
 
+            config.System.MatchSystemTime.Value = MatchSystemTime;
             config.System.SystemTimeOffset.Value = Convert.ToInt64((CurrentDate.ToUnixTimeSeconds() + CurrentTime.TotalSeconds) - DateTimeOffset.Now.ToUnixTimeSeconds());
             config.Graphics.VSyncMode.Value = VSyncMode;
             config.Graphics.EnableCustomVSyncInterval.Value = EnableCustomVSyncInterval;

src/Ryujinx/UI/Views/Settings/SettingsSystemView.axaml

@@ -166,7 +166,8 @@
                             ToolTip.Tip="{locale:Locale TimeTooltip}"
                             Width="250"/>
                         <DatePicker
-                            VerticalAlignment="Center" 
+                            VerticalAlignment="Center"
+                            IsEnabled="{Binding !MatchSystemTime}"
                             SelectedDate="{Binding CurrentDate}"
                             ToolTip.Tip="{locale:Locale TimeTooltip}"
                             Width="350" />
@@ -177,21 +178,21 @@
                         <TimePicker
                             VerticalAlignment="Center"
                             ClockIdentifier="24HourClock"
+                            IsEnabled="{Binding !MatchSystemTime}"
                             SelectedTime="{Binding CurrentTime}"
                             Width="350"
                             ToolTip.Tip="{locale:Locale TimeTooltip}" />
                     </StackPanel>
-                    <StackPanel
+                    <StackPanel Orientation="Horizontal">
-                        Margin="250,0,0,10"
+                        <TextBlock
-                        Orientation="Horizontal">
-                        <Button
                             VerticalAlignment="Center"
-                            Click="MatchSystemTime_OnClick"
+                            Text="{locale:Locale SettingsTabSystemSystemTimeMatch}"
-                            Background="{DynamicResource SystemAccentColor}"
+                            ToolTip.Tip="{locale:Locale MatchTimeTooltip}"
-                            Width="350"
+                            Width="250"/>
-                            ToolTip.Tip="{locale:Locale MatchTimeTooltip}">
+                        <CheckBox
-                            <TextBlock Text="{locale:Locale SettingsTabSystemSystemTimeMatch}" />
+                            VerticalAlignment="Center"
-                        </Button>
+                            IsChecked="{Binding MatchSystemTime}"
+                            ToolTip.Tip="{locale:Locale MatchTimeTooltip}"/>
                     </StackPanel>
                     <Separator />
                     <StackPanel Margin="0,10,0,10"

src/Ryujinx/UI/Views/Settings/SettingsSystemView.axaml.cs

@@ -35,7 +35,5 @@ namespace Ryujinx.Ava.UI.Views.Settings
                 ViewModel.ValidateAndSetTimeZone(timeZone.Location);
             }
         }
-
-        private void MatchSystemTime_OnClick(object sender, RoutedEventArgs e) => ViewModel.MatchSystemTime();
     }
 }