Windows 10 – How to change clock to 24 hour format

The steps below show how to change the Windows 10 clock to 24-hour format.

How to change Windows 10 time to 24-hour format

    1. Right-click on the clock at the bottom right of your screen then click on ‘Adjust date/time’
    2. In the right side of the window, click on ‘Date, time, & regional formatting’
    3. Scroll down to the bottom of ‘Regional format data’
    4. Click on ‘Change data formats’
    5. Under ‘Short time’ select ‘9:40’
    6. Close the window
    7. Your time will now be in 24-hour format

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47 comments on “Windows 10 – How to change clock to 24 hour format

  1. [Expletives deleted] This is such a relief! I’ve suffered with that stupid “09:40 AM” format for over a year because I thought that their stupid clock was BROKEN! Thank you, thank you, THANK YOU! (0940 means “AM” already, and civilians don’t put zeros in their hours, so… I just kinda figured that the zero indicated that I’d set it correctly to 24 hour time, and they’d simply screwed up a beautiful feature.)

  2. Holy sh*t, this is such a relief! I’ve suffered with that stupid “09:40 AM” format for over a year because I thought that their stupid clock was BROKEN! Thank you, thank you, THANK YOU!

    (0940 means “AM” already, and civilians don’t put zeros in their hours, so… I just kinda figured that the zero indicated that I’d set it correctly to 24 give time, and they’d simply screwed up a beautiful feature.)

  3. I needed to come here because of the poor UX on Microsoft’s side.
    The example show:
    9:40 AM and then 09:40, I thought it would still remain in the 12 hour format but would simply strip the AM and PM as many others show a checkbox to switch between the 12 and 24 hour format.

    All they had to do was add an example in the afternoon to make this more obvious.
    Thanks Microsoft 🙁

  4. Thank you! I have no idea why Microsoft didn’t include an afternoon time in the format examples so that you can actually see that you’re changing to 24-hour time.

    1. The East programmers should not make assumptions, it worked well for years, why do the keep breaking what worked, If it is not broke don’t fix it, woe that’s common sense, something Microsoft Cant put in AI!

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