diff --git a/src/ClaudeDo.Ui/ViewModels/Modals/Settings/PrimeScheduleRowViewModel.cs b/src/ClaudeDo.Ui/ViewModels/Modals/Settings/PrimeScheduleRowViewModel.cs
index 7830488..fe7e140 100644
--- a/src/ClaudeDo.Ui/ViewModels/Modals/Settings/PrimeScheduleRowViewModel.cs
+++ b/src/ClaudeDo.Ui/ViewModels/Modals/Settings/PrimeScheduleRowViewModel.cs
@@ -1,3 +1,4 @@
+using System.Globalization;
 using ClaudeDo.Ui.Services;
 using CommunityToolkit.Mvvm.ComponentModel;
 
@@ -23,8 +24,26 @@ public sealed partial class PrimeScheduleRowViewModel : ViewModelBase
 
     public string LastRunLabel => LastRunAt is { } v ? v.LocalDateTime.ToString("g") : "—";
 
+    private static readonly string[] TimeFormats = { @"h\:mm", @"hh\:mm" };
+
+    public string TimeText
+    {
+        get => TimeOfDay.ToString(@"hh\:mm", CultureInfo.InvariantCulture);
+        set
+        {
+            if (TimeSpan.TryParseExact(value, TimeFormats, CultureInfo.InvariantCulture, out var t)
+                && t >= TimeSpan.Zero && t < TimeSpan.FromDays(1))
+            {
+                TimeOfDay = t;
+            }
+            OnPropertyChanged(nameof(TimeText));
+        }
+    }
+
     partial void OnLastRunAtChanged(DateTimeOffset? value) => OnPropertyChanged(nameof(LastRunLabel));
 
+    partial void OnTimeOfDayChanged(TimeSpan value) => OnPropertyChanged(nameof(TimeText));
+
     public PrimeScheduleRowViewModel(PrimeScheduleDto dto, bool isExisting)
     {
         Id = dto.Id;
diff --git a/src/ClaudeDo.Ui/Views/Modals/SettingsModalView.axaml b/src/ClaudeDo.Ui/Views/Modals/SettingsModalView.axaml
index b185c09..8b137a3 100644
--- a/src/ClaudeDo.Ui/Views/Modals/SettingsModalView.axaml
+++ b/src/ClaudeDo.Ui/Views/Modals/SettingsModalView.axaml
@@ -224,10 +224,10 @@
                           <ToggleButton Classes="day-toggle" Content="{loc:Tr settings.prime.daySa}" IsChecked="{Binding Saturday, Mode=TwoWay}"/>
                           <ToggleButton Classes="day-toggle" Content="{loc:Tr settings.prime.daySu}" IsChecked="{Binding Sunday, Mode=TwoWay}"/>
                         </StackPanel>
-                        <TimePicker Grid.Column="2"
-                                    SelectedTime="{Binding TimeOfDay, Mode=TwoWay}"
-                                    ClockIdentifier="24HourClock" MinuteIncrement="5"
-                                    VerticalAlignment="Center"/>
+                        <TextBox Grid.Column="2"
+                                 Text="{Binding TimeText, Mode=TwoWay}"
+                                 PlaceholderText="HH:mm" MaxLength="5"
+                                 Width="68" VerticalAlignment="Center"/>
                         <TextBlock Classes="meta" Grid.Column="3" Text="{Binding LastRunLabel}" VerticalAlignment="Center"
                                    MinWidth="80"/>
                         <Button Classes="icon-btn" Grid.Column="4" Content="✕"