Date → Unix Timestamp

Enter a date (ISO string, or anything JavaScript can parse) and get the Unix timestamp in both seconds and milliseconds.

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

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

How to use this tool

  1. Type a date or ISO timestamp.
  2. Read the seconds and milliseconds values.
  3. Use the timestamp-to-date tool for the reverse.

Example

2023-11-14T22:13:20Z → 1700000000

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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