This article explains how to change the time in Windows 11. You can also change the date and time format based on your region.
How to Change the Date and Time in Windows 11 [Tutorial]
The quickest way to set the time manually is via the Windows taskbar.
Right-click the date/time on the right side of the taskbar and choose Adjust date and time.
Select the switch next to Set time automatically to turn it off.
