Originally posted here
WorkingHours currently uses the standard Windows 10 control for time & duration pickers, dating back to Windows Phone times when touch input was more important than keyboard input. Therefore entering a custom time/duration is quite cumbersome in a Desktop app.
The Windows UI team is considering implementing updated UI controls for those kinds of pickers, those proposals are being discussed here:
https://github.com/microsoft/microsoft-ui-xaml/issues/918
https://github.com/microsoft/microsoft-ui-xaml/issues/1807
I am currently not planning to create my own time/duration input control - my gut feeling is that such a task would take quite a long time to get right (mainly due to different time formats around the world)