Developer
Unix Timestamp Converter
Convert a Unix timestamp (epoch) to a readable date — or turn a date into a timestamp. Handles both seconds and milliseconds and shows ISO 8601, UTC, your local time, and relative time.
100% free · runs in your browser · nothing is uploaded.
Why use this tool
- 100% free, forever
- No sign-up or login
- Runs entirely in your browser
- Your files never leave your device
- Unlimited use, no watermarks
- Works on desktop and mobile
How to use Unix Timestamp Converter
- 1
Paste a Unix timestamp, or click Now for the current time.
- 2
Read the date in ISO, UTC, local, and relative formats.
- 3
Or pick a date to get its epoch in seconds and milliseconds.
Convert a Unix timestamp (seconds or milliseconds) to ISO, UTC, local, and relative time — or go the other way.
Frequently asked questions
It's the number of seconds since January 1, 1970 (UTC) — a common way software stores points in time.