toolsPulse tools
Epoch / Unix time
Convert a Unix timestamp to a date, or the other way around. Seconds vs milliseconds is the usual foot-gun.
Result
1787779133
2026-08-26T21:18:53.000Z
How to use
- 1Paste seconds or milliseconds.
- 2Read the human date in the result.
- 3Copy the value your API wants.
FAQ
- Seconds or ms?
- Values like 1.7e9 are seconds. 13-digit numbers are usually milliseconds.
- Time zone?
- Display uses this browser’s locale. The Unix number itself is UTC.
- Do you store what I type?
- Browser tools stay in this tab. Refreshing the page clears the form. Nothing is saved to a Pulse account.
- Is this free?
- Yes. Pulse stays free because of advertising. Ads may appear when you copy, download, or run the main action.