# 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

Canonical page: [https://chrome-stats.com/d/browser-24-hour-time-format](https://chrome-stats.com/d/browser-24-hour-time-format)

## Overview

- **ID:** `browser-24-hour-time-format`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Mathijs
- **Category:** appearance,social-communication
- **Daily users:** 89
- **Weekly downloads:** 2
- **Rating:** 4.67 / 5 (3 ratings)
- **Version:** 0.7
- **Last updated:** 2022-06-15
- **First published:** 2022-04-04
- **Size:** 17 KB
- **Data as of:** 2026-09-12
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/browser-24-hour-time-format/)
- **Website:** [https://github.com/MathijsNL/BrowserTime](https://github.com/MathijsNL/BrowserTime)

## Description

The Browser 24-Hour Time Format extension converts most time values displayed on supported websites from the 12-hour am/pm notation to a 24-hour time format. It primarily modifies the default page web.whatsapp.com, converting common time formats such as '01:23 AM', '01:23 am', '01:23 A.M.', and '01:23 a. m.' to seamless 24-hour notation. This extension ensures consistent and clear time display for users preferring the 24-hour clock system, enhancing usability and reducing confusion. Feedback and issue reports are welcomed to improve functionality.

## Rankings

- #12,401 — Overall
- #13 — format
- #115 — browser tab
- #121 — browser
- #165 — airtime
- #165 — form

## Permissions and access

### Content script matches

- `web.whatsapp.com`

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** Low risk likelihood

### Analysis details

- Request access to the following domains: whatsapp.com
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

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Source: [Chrome-Stats](https://chrome-stats.com/d/browser-24-hour-time-format)