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Unix Timestamp Converter

Convert Unix timestamps to readable dates and dates back to timestamps.

How it works

  1. 1Paste a timestamp, or type a date.
  2. 2See it in local time, UTC, ISO 8601 and relative time.
  3. 3Copy what you need.

Features

  • Detects seconds, milliseconds, microseconds and nanoseconds.
  • Local time, UTC, ISO 8601 and "3 days ago".
  • Dates in local time or UTC to seconds and milliseconds.
  • Live current timestamp.

Frequently asked questions

What is a Unix timestamp?

The number of seconds since 1 January 1970 00:00 UTC. Many systems use milliseconds instead; the converter detects which.

Which date formats can I type?

2026-09-30, 2026-09-30 14:30, or any full ISO 8601 date with a time zone.

Is my data sent anywhere?

No. Everything runs in your browser; nothing is uploaded.