Unix Timestamp Converter
Convert epoch timestamps to dates and back, in any timezone.
About this unix timestamp converter
A Unix timestamp counts the seconds since midnight UTC on 1 January 1970. It is what most databases, logs and APIs actually store, because it is a single number with no timezone attached and no ambiguity about formatting.
The catch is that it is unreadable to humans, and that some systems use seconds while others use milliseconds. This converts both ways and detects which unit you have pasted.
How to use it
- Paste a timestamp to see it as a date, or pick a date to get its timestamp.
- Seconds and milliseconds are detected automatically.
- Compare your local time against UTC and ISO 8601 side by side.
Unix Timestamp Converter — FAQ
Seconds or milliseconds?
Unix time is defined in seconds, but JavaScript, Java and many APIs use milliseconds. A ten-digit number is almost certainly seconds; thirteen digits is milliseconds. This tool guesses from the length and lets you override it.
What is the year 2038 problem?
Systems storing Unix time in a signed 32-bit integer overflow on 19 January 2038. Modern systems use 64-bit values and are unaffected for billions of years.
Does a Unix timestamp have a timezone?
No, and that is the point. It always refers to an instant in UTC. Timezones only matter when you format it for a human.