To change the date and time formats of Windows 8.1, follow the below procedure.
How to Change The Date and Time Formats on Windows 8.1
- From the Start screen, launch the Charms bar (Windows Key + C).
- Go to Settings > PC settings > Time and language.
- In the Date and time section, click on Change date and time formats.
- From there you can configure the following options:
- First day of the week
- Short date
- Long date
- Short time
- Long time
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