Attempting to change my clock to 24 hour time

Question

Attempting to change my clock to 24 hour time

David Weller 0

How do I change my clock to military time. I have gone through the Time & Language > Date & time with no success. I hope Microsoft has not deleted the ability.

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2 answers

Your answer

Answer 1

To use a 24‑hour (military) clock in Windows 11, the time format must be changed in Region settings, not just in Time & language.

Follow these steps:

Open Control Panel (search for “Control Panel” from Start).
Select Clock and Region.
Click Change date, time or number formats.
On the Formats tab, under Date and time formats:
- For a 24‑hour clock, set:
  - Short time to HH:mm
  - Long time to HH:mm:ss
Click Apply, then OK.

This switches Windows (including the taskbar clock) to 24‑hour time. The capability has not been removed; it is just configured via the Region/Formats settings instead of only Time & language.

References:

Answer 2

Refer to https://www.ninjaone.com/blog/change-lock-screen-time-to-12-hour-or-24-hour-format/

Using Settings: Open Settings and go to Time & Language > Language & Region > Regional format > Change formats.

Control Panel: Go to Control Panel > Clock and Region > Region > Formats to select your preferred time format.

Registry Editor: Open Registry Editor and go toHKEY_CURRENT_USER\Control Panel\International

For 12-hour format: Set sTimeFormat to h:mm: ss tt and sShortTime to h: mm tt.

For 24-hour format: Use HH:mm: ss and HH:mm respectively.

PowerShell: Modify formats indirectly using the following scripts:

For Short Time format: Set-ItemProperty -Path “HKCU:\Control Panel\International” -Name “sShortTime” -Value “HH:mm”

For Long Time format: Set-ItemProperty -Path “HKCU:\Control Panel\International” -Name sTimeFormat -Value “HH:mm:ss”

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hth

Marcin