Unix Timestamp Converter
Convert Unix epoch time to a human date and back, both directions.
1780540934 · 1780540934277 ms
A 10-digit value is read as seconds, 13 digits as milliseconds. Unix time counts from 1 January 1970 UTC.
How to convert a timestamp
Paste a Unix timestamp to see the matching date in UTC and local time. Or pick a date and time to get its epoch value in seconds and milliseconds. The current timestamp is shown so you can grab 'now' in one click.
Why epoch time exists
Unix time counts the seconds since 1 January 1970 UTC as a single number — easy to store, compare, and do arithmetic on, with no time-zone ambiguity. Converting to a readable date is the last step for humans.
Questions
Does it accept seconds or milliseconds?
Both. A 10-digit number is read as seconds and a 13-digit number as milliseconds, the two common epoch formats, so you can paste either without converting first.
Which time zone does it show?
Both — the converted date is shown in UTC and in your browser's local time zone side by side, so you can read whichever you need without doing the offset math yourself.