The clock should be displayed on top of other apps on windows. Built with .NET Core 6.
You should be able to configure datetime in the app config file.
Datetime format explained here: https://learn.microsoft.com/en-us/dotnet/standard/base-types/custom-date-and-time-format-strings
Ironically the page doesn't have "U" - which is why I created this clock.
Enjoy :)