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Is it possible to make the windows clock display its time in a 24-hour format instead of the default 12-hour format? There doesn't appear to be any way to do this via the UI, but I'm wondering if maybe there's a registry setting somewhere I don't know about.


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Note that the alleged 12-hour default format is locale-dependent. Most countries (and hence locales) nowadays use 24-hour clocks by default. –  Joey Jun 17 '10 at 18:53

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up vote 10 down vote accepted

Yes you can. It's not on the Time control panel, it's on the Regional Options. You'll have to make a custom region that uses 24h time. The time format should be "H:mm:ss" instead of "h:mm:ss".

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Using HH:mm now and loving it. Thanks again! –  bwerks Jun 21 '10 at 18:26

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