How do you reset a digital watch from 24hr to 12hr time?

To reset a digital watch from 24-hour to 12-hour time, locate the mode or settings button on your watch. Press and hold this button until the display starts to blink, then use the adjustment buttons to navigate to the time format setting. Select the 12-hour format and confirm your choice, usually by pressing the mode button again. Finally, exit the settings to return to the normal time display.