Go to Settings > Time and Language > select Region in the left pane. Hence, you may find it useful to switch your computer from 12 Hour Clock to 24 Hour clock while travelling.ġ. The change in the time format will be immediate and you should now find your computer displaying the time in 12 Hour format.Īs you must have noticed, Airlines and Railways report Arrivals and Departures in 24 hour format. On the next screen, use the Down-Arrow to select time with AM/PM suffix for Long Time and Short Time. In the right-pane, scroll down and click on Change Data Formats link, located under ‘Regional Format Data’ section.ģ. On the next screen, select Region in the left pane. Open Settings > click on Time and Language.Ģ. The easiest way to change the time format on your computer from 24 to 12 hours is by going to the “Time and Language” Settings on your computer.ġ. Change 24 Hour Clock to 12 Hour Using Settings While computers run on 24 hour clocks, Windows 10 provides the option to show time in both 24 hour and 12 hour formats.