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Unix timestamp converter
Turn Unix timestamps into dates and dates back into timestamps, with a live clock.
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How it works
- 1Read the live Unix time at the top, or copy it.
- 2To convert a timestamp, type it in the left box. The unit is detected from its size.
- 3To convert a date, pick a date and time on the right and say whether it is in your time zone or UTC.
- 4Copy the value you need.
What the options do
- Unit
- Detect picks seconds, milliseconds, microseconds or nanoseconds from the number of digits. Choose one yourself if the guess is wrong.
- Entered in
- Whether the date you picked is in your time zone or in UTC.
Privacy
This tool runs in your browser. Your files are never uploaded to a server.
Questions people ask
What is a Unix timestamp?
The number of seconds since 1 January 1970 at 00:00:00 UTC, called the epoch. It is the same everywhere in the world, which makes it useful for storing times.
Seconds or milliseconds?
A 10-digit number such as 1700000000 is in seconds, and a 13-digit number is in milliseconds. JavaScript and Java use milliseconds, while most Unix tools and many APIs use seconds.
Does a timestamp have a time zone?
No. It is always counted from the UTC epoch. Time zones only matter when you turn it into a calendar date, which this tool shows both ways.
What is the year 2038 problem?
Systems that store the timestamp as a signed 32-bit number run out on 19 January 2038. Browsers and modern 64-bit systems are not affected.
Can it handle dates before 1970?
Yes. A negative timestamp is a time before the epoch, for example -86400 is 31 December 1969.