Browser 24-Hour Time Format

Browser 24-Hour Time Format

Displays time as 24-Hour instead of am/pm for websites. The default and only page this extension changes is

Browser 24-Hour Time Format promo image
What is Browser 24-Hour Time Format?

Browser 24-Hour Time Format is a Firefox add-on that converts time values on websites to 24-hour notation. It supports multiple time formats and primarily changes the time display on websites like WhatsApp.

Stats date:
By: Mathijs
Users: 65 ▼ -1
Rating: 4.67 (3)
Version: 0.7 (Last updated: 2022-06-15)
Creation date: 2022-04-04
Weekly download count: NaN
Firefox on Android: No
Manifest version: 2
Size: 17.12K
Email: Click to see
URLs: Website
Risk impact: Moderate risk impact
Risk likelihood: Low risk likelihood

Other platforms

Not available on Chrome
Not available on Edge

This extension converts most time values in your browser to 24 hour notation. The default website is

Currently it supports the following formats:

  • 01:23 am
  • 01:23 AM
  • 01:23 a. m.
  • 01:23 A.M.

If something is not working please let me know.

User reviews
Thanks. Could you also help to update the default download file name? For example, when I download an image, it defaults the filename to something like "WhatsApp Image 2022-07-06 at 5.43.01 PM".
by dohanin, 2022-07-06

Works exactly as expected, very happy that this exists!
by Ale, 2022-04-11

Bloedirritant, die AM/PM, is prima opgelost zo, tnx!
by Pieter Ouborg, 2022-04-06
View all user reviews
Risk impact

Browser 24-Hour Time Format may not be safe to use and it requires some risky permissions. Exercise caution when installing this add-on. Review carefully before installing.

Risk likelihood

Browser 24-Hour Time Format has earned a fairly good reputation and likely can be trusted.

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