Free tools / Unix Timestamp Converter
Convert Unix timestamps
Paste a Unix timestamp to get a readable date, or pick a date to get the timestamp. Handles seconds and milliseconds, and shows both UTC and your local time.
How it works
- 1Paste a Unix timestamp - we auto-detect seconds vs milliseconds - to see the date in UTC, your local time and ISO 8601.
- 2Or pick a date and time to get the timestamp in seconds and milliseconds.
- 3Use 'now' to grab the current timestamp instantly.
Frequently asked
Seconds or milliseconds?
A Unix timestamp is normally seconds since 1970-01-01 UTC; JavaScript uses milliseconds. We auto-detect by magnitude (13-digit values are treated as milliseconds) and show both.
What timezone are the dates in?
We show UTC, your browser's local timezone, and the ISO 8601 string, so there's no ambiguity.
Does anything get sent to a server?
No - all conversion happens in your browser.