Timestamp Converter

Convert Unix timestamps to human-readable dates and back. Supports seconds and milliseconds.

Seconds–
Milliseconds–

How to use the Timestamp Converter

  1. Left panel: enter a Unix timestamp (in seconds or milliseconds) and get the equivalent date in local time, UTC, and ISO 8601 format, plus a relative description ("3 days ago").
  2. Click Now to fill in the current timestamp instantly.
  3. Right panel: pick a date and time to get the equivalent Unix timestamps in seconds and milliseconds.

What is a Unix timestamp?

A Unix timestamp is the number of seconds (or milliseconds) elapsed since the Unix epoch – midnight on 1 January 1970 UTC. Timestamps are timezone-agnostic: the same number represents the same instant in time everywhere in the world. They are widely used in databases, APIs, and log files.