Unix Timestamp
Convert Unix timestamps to dates and back, in local time and UTC.
- Runs in your browser
- Data
Now
··········
How to use the Unix Timestamp
- 1Type a Unix timestamp in seconds or milliseconds, or any date string such as 2026-10-19T10:00:00Z.
- 2Or use the quick buttons (Now, Start of today, +1 day) or the date picker.
- 3Copy any format: Unix seconds, milliseconds, ISO 8601, UTC or your local time.
Questions
How does it tell seconds from milliseconds?
Numbers with 12 or more digits are treated as milliseconds, smaller ones as seconds. Today's time in seconds has 10 digits and in milliseconds 13.
What is a Unix timestamp?
The number of seconds since 1 January 1970 at 00:00 UTC, ignoring leap seconds. It's the same everywhere in the world at a given moment.
What time zone is 'local'?
Your device's time zone. The UTC and ISO 8601 rows don't depend on it.