Merge pull request #690 from Keboo/fix689

Allow 12:00am as initial time selection

Author: ButchersBoy

MaterialDesignThemes.Wpf/TimePicker.cs

@@ -418,11 +418,17 @@ private void InitializeClock()
 			_clockHostContentControl.SetBinding(StyleProperty, GetBinding(ClockHostContentControlStyleProperty));
 		}
 
-		private void ClockChoiceMadeHandler(object sender, ClockChoiceMadeEventArgs clockChoiceMadeEventArgs)
-		{
-			if (clockChoiceMadeEventArgs.Mode == ClockDisplayMode.Minutes)
-				TogglePopup();
-		}
+        private void ClockChoiceMadeHandler(object sender, ClockChoiceMadeEventArgs clockChoiceMadeEventArgs)
+        {
+            if (clockChoiceMadeEventArgs.Mode == ClockDisplayMode.Minutes)
+            {
+                TogglePopup();
+                if (SelectedTime == null)
+                {
+                    SelectedTime = _clock.Time;
+                }
+            }
+        }
 
 		private void DropDownButtonOnClick(object sender, RoutedEventArgs routedEventArgs)
 		{