https://learn.microsoft.com/windows/windows-app-sdk/api/winrt/microsoft.ui.xaml.controls.timepicker?view=windows-app-sdk-2.0#12-hour-and-24-hour-clocks
By default, the time picker shows a 12-hour clock with an AM/PM selector. You can set the ClockIdentifier property to "24HourClock" to show a 24-hour clock instead.
This paragraph is outdated. Default UI behavior is now to follow locale, this is built-in. Unfortunately, this behavior is not documented (!)
Please update the docs accordingly :)
https://learn.microsoft.com/windows/windows-app-sdk/api/winrt/microsoft.ui.xaml.controls.timepicker?view=windows-app-sdk-2.0#12-hour-and-24-hour-clocks
This paragraph is outdated. Default UI behavior is now to follow locale, this is built-in. Unfortunately, this behavior is not documented (!)
Please update the docs accordingly :)