Here is a tutorial showing you how to change Date and Time formats (US, International, etc) on Windows 11 using Settings or Control Panel.

If you are not able to manually change time in Windows 11/10, restart Windows Time Service, use Terminal to change time & ...

On Windows 11, you can change the format of a file in multiple ways through File Explorer, Command Prompt, and from a compatible application. In this guide, I'll show you how.