EpochLab

Unix Timestamp Converter

Convert a Unix timestamp to a date, or back

Paste a timestamp and get the date; paste a date and get the timestamp. Seconds, milliseconds, microseconds and nanoseconds are detected from the digit count, and the guess is shown so you can override it.

Questions people ask

The things that come up about unix timestamp converters, answered plainly.

What is a Unix timestamp?

A count of seconds since 1 January 1970 at 00:00:00 UTC — the Unix epoch. It names one instant with no time zone attached, which is what makes it unambiguous to store and send.

How do I tell seconds from milliseconds?

Count the digits. For dates near the present, 10 digits is seconds, 13 is milliseconds, 16 is microseconds and 19 is nanoseconds. A 13-digit number read as seconds lands in the year 45,000, which is the usual sign something is off by a thousand.

Is the current Unix time the same everywhere?

Yes. The timestamp is identical on every machine on Earth at the same moment; only the local rendering differs. That is the entire reason to store timestamps rather than local times.

Related tools

Seconds, milliseconds, microseconds and nanoseconds, in both directions.

Timestamp to DateOne field, one answer — the timestamp as a date and time in your zone, in UTC, and in about thirty other encodings you might need to paste somewhere.
Date to TimestampType a date any way you like — ISO, a slash date, `next friday`, `now` — and get the timestamp in seconds, milliseconds, microseconds and nanoseconds.
Epoch ConverterThe same conversion as a Unix timestamp, plus the other epochs a number might belong to — Windows FILETIME, .NET ticks, Excel serials, Julian days — ranked by how plausible each reading is.
Milliseconds ConverterThe 13-digit form — what `Date.now()`, `System.currentTimeMillis()` and most of Java and JavaScript speak — converted both ways, with the seconds value beside it.

All 160 tools · More in unix time & epochs