Unix Timestamp Converter

Convert Unix timestamps to human-readable dates and back, with timezone support.

About Unix Timestamp Converter

A Unix timestamp counts the seconds since 1 January 1970 UTC - compact for computers, unreadable for people. This converter translates a timestamp into a human date and time, and converts a date back into a timestamp.

Paste a timestamp to see the matching date, or pick a date to get its timestamp. It handles both seconds and milliseconds, and shows the result in UTC and your local time so you can reason about time zones without doing the math by hand.

Developers meet Unix time constantly - in logs, databases, API fields, and token expiry claims. The converter is the quickest way to answer when something actually happened, or to produce the exact timestamp a system expects.

Frequently asked questions

Seconds or milliseconds - which is it?

Ten-digit values are usually seconds; thirteen-digit values are milliseconds. The tool handles both.

What time zone is the result in?

Unix time is UTC-based; the tool shows both UTC and your local time.

What is the Unix epoch?

The starting point of Unix time: midnight UTC on 1 January 1970.

Can I convert a date back to a timestamp?

Yes, choose a date and time and the tool returns the corresponding Unix value.

Does it account for leap years?

Yes, date math follows the calendar, including leap years.