diff --git a/Flow.Launcher/ViewModel/SettingWindowViewModel.cs b/Flow.Launcher/ViewModel/SettingWindowViewModel.cs
index a97a328e6..ae8c9d9aa 100644
--- a/Flow.Launcher/ViewModel/SettingWindowViewModel.cs
+++ b/Flow.Launcher/ViewModel/SettingWindowViewModel.cs
@@ -477,7 +477,8 @@ namespace Flow.Launcher.ViewModel
             "tt h:mm",
             "tt hh:mm",
             "h:mm tt",
-            "hh:mm tt"
+            "hh:mm tt",
+            "hh:mm:ss tt"
         };
 
         public List<string> DateFormatList { get; } = new()