Unix Timestamp Converter

Convert Unix seconds or milliseconds to a readable UTC date, or convert a UTC date into a timestamp. All calculations happen in your browser.

What is a Unix timestamp?

Unix time counts seconds since January 1, 1970, 00:00 UTC. Some systems use milliseconds instead. Select the appropriate unit for accurate results.

How to convert

1. Enter a Unix timestamp and choose its unit.
2. Select Convert to UTC.
3. Or enter a UTC date and convert it to Unix seconds and milliseconds.

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