Convert Unix epoch timestamps to dates and back, instantly.
About this tool
Convert Unix epoch timestamps to human-readable dates and back. Paste a 10-digit (seconds) or 13-digit (milliseconds) value and get the date instantly in your local timezone or UTC - plus the live current timestamp. Everything runs in your browser.
Frequently asked questions
What is epoch time?
The number of seconds since January 1, 1970 00:00:00 UTC. Systems store dates this way because it is a single number that is easy to compare and sort.
How do I convert epoch milliseconds to a date?
Paste the value - the converter auto-detects milliseconds (13 digits) vs seconds (10 digits) and shows the date in your timezone or UTC.
What is the 2038 problem?
32-bit systems storing epoch seconds overflow on January 19, 2038. Modern 64-bit systems are unaffected.