Unix Timestamp Converter – Convert Unix timestamp to date and back
The Unix timestamp converter transforms Unix timestamps (seconds since January 1, 1970) into readable dates and times — and vice versa. Works with both seconds and milliseconds.
Enter a Unix timestamp or date to get the corresponding value in the other format. The tool also shows timezone information (UTC and local time) and is perfect for developers debugging API responses.
What is a Unix timestamp and why is it used?
A Unix timestamp is the number of seconds since the computer world's 'birthday' January 1, 1970 00:00:00 UTC. For example, 1700000000 corresponds to around November 2023. It's a universal way to store time in software — no timezone issues, easy to calculate time differences. Millisecond timestamps (ms) are 1000 times larger, common in JavaScript.
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Browse all tools →The Unix timestamp converter converts Unix timestamps (epoch time) to readable dates and vice versa. Handy tool for developers handling timestamp data in software.
Enter a Unix timestamp or date, and the tool instantly converts it to the other format.
- Convert Unix timestamp (seconds since Jan 1, 1970) to readable date.
- Convert date and time to Unix timestamp.
- See current Unix timestamp in real-time.
Unix timestamp is seconds count in UTC time – timezone affects local time.
- Timestamp is always UTC – remember to account for local timezone.
- Millisecond timestamps (13 digits) differ from seconds (10 digits).
- Year 2038 problem (32-bit overflow) affects older systems.
Unix timestamp is a universal way to represent moments in time in software development.
- Timestamp 0 = January 1, 1970 00:00:00 UTC.
- Negative timestamps describe time before 1970.
- Tool works in browser – data isn't sent to server.