Unix Timestamp Converter
Convert between Unix epoch timestamps and readable dates. Supports seconds and milliseconds.
Timestamp → Date
Detected format: —
UTC:
Local:
Date → Timestamp
Unix (seconds):
Unix (milliseconds):
About Unix time
Unix time (also called Epoch time) is the number of seconds since January 1, 1970 (UTC).
Some systems use milliseconds instead of seconds. This tool detects the format based on length.
All calculations run locally in your browser.
FAQ
How do I know if a value is in milliseconds?
Millisecond timestamps are usually 13 digits. This tool will label the detected format.
Does the local time use my timezone?
Yes. The local output uses your browser timezone and DST rules.