Unix Timestamp Converter

Convert Unix timestamps in seconds, milliseconds or microseconds to readable dates and back. See UTC, ISO 8601, any time zone and relative time for many values at once.

  • Free, no sign-up
  • Runs in your browser
  • Your data stays private

How to use the Unix Timestamp Converter

  1. Paste timestamps or dates, one per line, or type "now".
  2. Choose the time zone to show.
  3. Read or copy the conversions.

Why use this Unix Timestamp Converter

  • Auto-detects units10-digit seconds, 13-digit milliseconds, microseconds and nanoseconds.
  • Many formatsUnix seconds, milliseconds, ISO 8601, your chosen zone and relative time.
  • Time zonesUTC, your device zone and 15 popular cities with the correct UTC offset.
  • Batch conversionConvert a whole list at once and copy any cell.

Frequently asked questions

How do I convert a Unix timestamp to a date?

Paste the number. Ten digits are read as seconds and thirteen as milliseconds.

How do I get the Unix timestamp for a date?

Paste the date, such as 2025-03-14 09:00, and read the Unix seconds column.

Which time zone is used for dates without one?

UTC by default. Switch the option to use your device time instead.

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