Unix Timestamp Converter

How it works

How to use the Timestamp Converter

1. Paste a timestamp or date

   Unix seconds, milliseconds, microseconds, ISO 8601 or RFC 2822 — the format is detected for you.

2. Pick a time zone

   See the moment in UTC, your local zone or any IANA zone, plus relative time and ISO week.

3. Go the other way

   Choose a date and time in any zone to get its Unix timestamp.

What is Unix time?

Unix time (epoch time) counts the seconds since 00:00:00 UTC on 1 January 1970, ignoring leap seconds. It is time-zone independent, which makes it ideal for storing and comparing moments in time. JavaScript and many APIs use milliseconds instead of seconds — a 13-digit number. Timestamps stored as signed 32-bit integers overflow on 19 January 2038, so use 64-bit integers for new systems.

Built for developers

Why developers use it

• Private by design

  Runs 100% in your browser. Nothing you paste is uploaded, logged or stored on a server.

• Instant results

  Output updates as you type, with precise error locations when something is wrong.

• Works offline

  Once loaded, the tool keeps working without a connection. Install it as an app if you like.

• Free, no sign-up

  No accounts, no limits, no watermarks.

FAQ

Frequently asked questions

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