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Unix Epoch Timestamp Converter & Formatter

Convert Unix epoch timestamps in seconds or milliseconds to human-readable dates across multiple timezones and vice versa.

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ISO 86012026-10-13T10:19:51.000Z
UTC StringTue, 13 Oct 2026 10:19:51 GMT
Formatted Local TimeTuesday, October 13, 2026 at 10:19:51 AM UTC
Relative Offsetnow
Unix Timestamp (Seconds)1791886791
Unix Timestamp (Milliseconds)1791886791000

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What is Unix Epoch Timestamp Converter & Formatter?

The Unix Timestamp Converter translates epoch time — the number of seconds (or milliseconds) since 1 January 1970 UTC — into readable dates, and back. Enter a timestamp to see it as ISO 8601, UTC and local time in the time zone you choose, or set the current time with one click. Developers use it to read log files, debug API responses and check token expiry times.

How to use Unix Epoch Timestamp Converter & Formatter

  1. 1

    Enter a timestamp or date

    Type an epoch value in seconds or milliseconds, or use Set Current Time.

  2. 2

    Pick a time zone

    Choose the zone to display the local time in.

  3. 3

    Copy the format you need

    Copy the ISO, UTC, local or epoch value.

Frequently asked questions

Seconds or milliseconds?

A 10-digit value is seconds and a 13-digit value is milliseconds. JavaScript Date uses milliseconds; most Unix tools and APIs use seconds.

What is timestamp 0?

1 January 1970 at 00:00:00 UTC, the Unix epoch.

What is the year 2038 problem?

Systems that store timestamps as signed 32-bit integers overflow on 19 January 2038. JavaScript and this tool use 64-bit numbers, so they are not affected.

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