Timestamp Converter — Unix to Date
Convert Unix timestamps to dates and vice versa — instant and free.
How to Use Timestamp Converter
Enter a Unix timestamp or select a date
See local time, UTC, ISO 8601, and relative time
Copy any format with one click
Your files never leave your browser
No upload wait time. Results in seconds
No daily limits, no file count limits
No account, no subscription, no fees
About Unix Timestamps
Unix time (POSIX time) counts the number of seconds since January 1, 1970, 00:00:00 UTC. It's the universal time format used in programming, databases, APIs, and log files because it's timezone-independent and easy to compute with.
Common Timestamp Formats
- Unix (seconds): 1718211600 — used in most APIs and databases
- Unix (milliseconds): 1718211600000 — used in JavaScript's Date.now()
- ISO 8601: 2025-06-12T18:00:00.000Z — human-readable standard
Frequently Asked Questions
What is a Unix timestamp?
A Unix timestamp is the number of seconds (or milliseconds) since January 1, 1970 00:00:00 UTC — also known as the Unix epoch.
Does it support millisecond timestamps?
Yes — toggle between seconds and milliseconds to handle both JavaScript-style (ms) and traditional Unix (s) timestamps.