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Date & time

Unix timestamp converter

Convert Unix epoch time in seconds, milliseconds, microseconds or nanoseconds to a date, and back.

How it works

Unix time counts seconds since 1 January 1970 00:00:00 UTC. Paste a timestamp in seconds, milliseconds, microseconds or nanoseconds: the converter guesses the unit from the number of digits (10 for seconds, 13 for milliseconds) and shows the date in UTC, your local time and ISO 8601. Or pick a local date and time to get its timestamp.

Questions and answers

What is a Unix timestamp?

The number of seconds since the Unix epoch, 1970-01-01T00:00:00Z, ignoring leap seconds. JavaScript and many APIs use milliseconds instead.

How do I tell seconds from milliseconds?

Present-day timestamps have 10 digits in seconds and 13 in milliseconds. ConvertEasy detects this automatically.

What is the year 2038 problem?

Signed 32-bit timestamps overflow on 19 January 2038 at 03:14:07 UTC. 64-bit systems and JavaScript are unaffected.