Unix Timestamp Converter

Convert between Unix timestamps and readable dates using browser Date APIs only.

Result

  • Local date/time: 5/1/2026, 7:25:18 PM
  • UTC date/time: Fri, 01 May 2026 16:25:18 GMT
  • ISO 8601: 2026-05-01T16:25:18.000Z
  • Unix seconds: 1777652718
  • Unix milliseconds: 1777652718000

All conversion happens locally in your browser. The value you enter is not sent to a server, logged, stored, or transmitted.

How to use this tool

Enter the required values in the labeled fields. Results update in your browser and are announced for assistive technologies. Use realistic measurements and verify important outcomes before acting on them.

Formula or logic

The tool supports seconds and milliseconds modes, shows UTC and local formats, and does not send dates to a server.

Example calculation

Example: 1700000000 seconds converts to a readable local and UTC date.

Frequently asked questions

Is this processed server-side?

No. Conversion uses browser Date APIs.

Does timezone affect Unix time?

Unix time is absolute; only the displayed local date depends on your browser timezone.

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