Unfortunately, it is now possible to change the time format of the clock on the lock screen. The clock on the lock screen will continue to display the time in 24-hour format.
Please note that changing the time format from 24-hour to 12-hour time does not affect the clock on the lock screen. This guide shows you how to change the time format from 24 hours to 12 hours or vice versa in Windows 10. If you are using Windows 10 and prefer to change the default time format from 24-hour to 12-hour or vice versa, you can change the time format in the settings and control panel. While there is nothing wrong with the 24-hour format, many users find the 24-hour clock difficult to read and prefer the easy-to-read 12-hour clock. With the default settings, Windows 10 displays a 24-hour clock on both the taskbar and the lock screen.
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