browserutils

Time Format Converter

Convert between 12-hour and 24-hour time

Time Format Converter is a free online tool from BrowserUtils that convert between 12-hour and 24-hour time. It runs entirely in your browser — your data never leaves your device. No account required.

12-Hour to 24-Hour

24-Hour to 12-Hour

How to use Time Format Converter

  1. 1 Paste or type your input into the editor above.
  2. 2 The tool processes your data instantly — right in your browser, with nothing sent to a server.
  3. 3 Copy the result with one click or continue editing your input.

About Time Format Converter

Free online time format converter. Instantly convert between 12-hour (AM/PM) and 24-hour (military) time formats. This tool runs entirely in your browser — your data is never sent to a server. Just paste your input, get instant results, and copy with one click. No sign-up or installation required.

Time Format Converter specs

Runtime
100% client-side (browser)
Built on
Native Date and Intl.DateTimeFormat APIs with full IANA timezone database support
Cost
Free — no account, no rate limits, no usage caps
Browser support
Chrome 90+, Firefox 88+, Safari 14+, Edge 90+
Part of
299 developer tools on BrowserUtils (100% client-side)

Questions

What is 24-hour time?
24-hour time, also called military time, runs from 00:00 to 23:59 without AM/PM designations.
How do I convert PM times to 24-hour format?
Add 12 to the hour for PM times (except 12 PM which stays 12). For example, 3:30 PM becomes 15:30.
What is 12:00 AM in 24-hour format?
12:00 AM (midnight) is 00:00 in 24-hour format. This is often a source of confusion because 12 AM is the start of the day, not the end.
Which countries use 24-hour time?
Most countries outside the United States use 24-hour time in official contexts. The US, Canada, Australia, and a few others commonly use 12-hour AM/PM format in everyday life.
Does the time format converter work offline?
Yes. The conversion is a simple arithmetic operation that runs entirely in your browser. No internet connection is needed after the page loads.
Embed this tool

Copy this code to embed the tool on your website. Adjust the height to fit your layout.

<iframe src="https://www.browserutils.dev/embed/time-format-converter" width="100%" height="500" frameborder="0" title="Time Format Converter"></iframe>

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