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Unix Timestamp Converter

Convert a Unix timestamp to a readable date, or a date back to epoch seconds. Shows UTC and your local time together.

Timestamp to date

Date to timestamp

Right now

Live

Reading your clock…

How to use the Timestamp Converter

  1. 1

    Paste a Unix timestamp — seconds, milliseconds and microseconds are detected automatically.

  2. 2

    Read the result in UTC, in your local timezone and as an ISO 8601 string.

  3. 3

    Or go the other way: pick a date and read off the epoch value.

Frequently asked questions

Seconds or milliseconds — how does it know?

By magnitude. A 10-digit value is treated as seconds (the Unix convention), 13 digits as milliseconds (the JavaScript convention) and 16 digits as microseconds. You can override the guess.

What timezone is used?

Both are shown side by side: UTC, and your own timezone as reported by your browser. Nothing is guessed on a server, so the local time is always genuinely yours.

Is my data uploaded to a server?

No. Every tool on this site runs entirely inside your browser using JavaScript. Your input never leaves your device and is never sent over the network, which means it is safe to paste production data, API responses and tokens.