Unix Timestamp → Date

Paste a Unix timestamp in seconds or milliseconds and get the ISO, UTC and local date. Auto-detects seconds vs milliseconds.

100% freeNo sign-upRuns in your browserNo upload · data stays private

📖 Read the full Unix Timestamp → Date guide — how it works, examples & FAQ →

How to use this tool

  1. Paste a numeric Unix timestamp.
  2. Read the ISO, UTC and local date.
  3. Use the date-to-timestamp tool for the reverse.

Example

1700000000 → 2023-11-14T22:13:20.000Z

Why it's private

This tool runs entirely in your browser using JavaScript. Whatever you paste is processed on your own device — it is never uploaded to a server, logged, or stored. Built by Calabi, which also strips AI metadata and C2PA signals from images and video.

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