Windows allows you to customize how the time is displayed in Windows so that it includes leading zeros or changes it from 12 hour to 24 hour format.

Learn how to change Time format in Lock Screen in Windows 11/10. Change the clock to a 12-hour or 24-hour format using Settings or Control Panel.

There are occasions when you'll want to adjust the time on your Fitbit smartwatch or fitness tracker manually. Find out how.