Unix Timestamp Converter
Convert Unix timestamps to human-readable dates and back. Supports seconds and milliseconds, 10 world timezones, relative time display, batch conversion, and code snippets.
About Unix Timestamps
A Unix timestamp represents the number of seconds elapsed since January 1, 1970, 00:00:00 UTC (the Unix Epoch). It is the standard way to store time in databases, APIs, and log files — timezone-independent and unambiguous.
Seconds vs Milliseconds: Unix timestamps traditionally use seconds (10 digits), but JavaScript’s Date.now() returns milliseconds (13 digits). This converter auto-detects the format.