Windows – How to have a secondary clock show in 24-hour time but the primary one in 12-hour time

clocktimetime zonewindows 8.1

Is it possible to have only one of my secondary clocks display in 24-hour time while the other two clocks display in 12-hour time? If so, how?

I would find this useful for dealing with UTC time.

_{This is not a duplicate of "Can the Windows clock be configured to display a 24-hour-based time?" as that question is about all clocks in general, while this question is about only one of the additional clocks.}

This is not possible as the time format setting is applied to every clock.

However, you can easily use a third-party tool to display as many clocks in different settings as you like. One such application is Rainmeter.