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

  1. Where are these settings stored ? I want to set them as default for new users on machines but I do not find anywhere which registry keys to set or which PowerShell command can do this.

  2. Leave it to Microsoft to have this moronic, not obvious at all, way of switching to a 24-hour clock. Just have a button, right there, that says “24-hour clock”. For crying out loud.

  3. It seems to me that Microsoft should have made the example time they use something that actually shows the difference in time format, e.g. 9:40 PM and 21:40

  4. I thought the same as a lot of you. Why was this hidden so much?? I also think it’s kind of funny that this post was made in 2016 and updated last in 2019, but all the comments are from 2021.

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