How do I convert Unix milliseconds to date?

Paste the 13-digit value and read local, UTC, and ISO output.

Is Unix ms same as Unix seconds?

No. Unix ms is 1000 times Unix seconds and usually has 13 digits.

Yes. This page outputs the seconds value directly.

Name: Unix ms to Date Converter | UnixEpoch.net
Author: Zelonagi

Convert 13-digit Unix milliseconds to human-readable date/time for JavaScript logs and frontend telemetry.

Unix Milliseconds Input

Local Date/Time-

UTC Date/Time-

ISO 8601-

Unix Seconds-

What is Unix ms timestamp?

It is Unix time in milliseconds since January 1, 1970 UTC, commonly produced by JavaScript Date.now().

How do I convert Unix ms to date?

Paste the 13-digit value and the converter returns local, UTC, ISO, and seconds outputs.

Can I convert it back to Unix seconds?

Yes. The converter shows seconds output so you can use APIs expecting 10-digit Unix time.

Editorial Review

Reviewed by event stream and JavaScript time specialists

Optimized for millisecond timestamps used in JavaScript, telemetry events, browser logs, and client-side analytics.