Unix Timestamp Converter
Convert Unix time to a date and back.
What would you like to do next?
Convert between Unix time and a readable date
A Unix timestamp counts the seconds that have elapsed since the first instant of 1970 in UTC, the reference point computers use to store moments in time. This converter takes that bare number and shows you what it actually means: your own local time, the equivalent in UTC, the ISO 8601 string and how long ago or away it is. Paste a value from a log file, an API response or a database and read it at a glance. You can also go the other way, picking a calendar date and time to get back the matching epoch value in both seconds and milliseconds.
Seconds or milliseconds
Some systems store the count in seconds and others in milliseconds, which is a thousand times larger. The tool detects which you pasted from the length of the number, and you can force either unit if a value is ambiguous.
Frequently asked questions
What is a Unix timestamp?
It is the number of seconds since midnight UTC on 1 January 1970, a single number that pins down an exact moment regardless of time zone.
How do I tell seconds from milliseconds?
A seconds value is about ten digits today; a milliseconds value is about thirteen. The converter auto-detects this, and you can override it with the unit menu.
Which time zone is the result in?
It shows both your device's local time and UTC, so you can read whichever you need without doing the offset maths yourself.