Convert Unix timestamps to readable dates – and dates back to timestamps.
🔒 Converted in your browser.
How to use the unix timestamp converter
- Paste a timestamp or type a date.
- Read UTC, local, ISO and relative time.
- Copy the format you need.
What is a Unix timestamp?
The number of seconds since 1 January 1970 00:00:00 UTC. JavaScript and many APIs use milliseconds instead – this tool detects both.
Frequently asked questions
Seconds or milliseconds?
13-digit values are treated as milliseconds, 10-digit as seconds.
Which time zone?
Results show UTC and your browser's local time.
What is the 2038 problem?
32-bit systems overflow on 19 January 2038; 64-bit systems are fine.