Unix timestamp converter

A Unix timestamp counts the seconds (or milliseconds) since 1 Jan 1970 UTC. Paste an epoch to see it as a local, UTC and ISO date, or paste a date to get the epoch back — all on your device.

⏱

Unix timestamp converter

Unix epoch ↔ date

Input
Result
Output appears here…

0 bytes of your file have left this device. Counted live in this tab, not claimed — open your browser’s Network tab and watch.

How it works

  1. 1

    Paste your input on the left.

  2. 2

    Pick a mode if the tool has one — the result updates instantly.

  3. 3

    Copy the output with one click. Nothing is ever uploaded.

Frequently asked questions

Seconds or milliseconds?

Both — it auto-detects: 13-digit or longer values are treated as milliseconds, shorter ones as seconds.

Which timezone?

It shows your local time plus UTC and ISO 8601, so there’s no ambiguity.