Convert Unix epoch timestamps (seconds and milliseconds) to human-readable dates, UTC, ISO 8601, and local time zones. Includes live clock and countdown tools.
Unix time (or POSIX time) is the number of seconds that have elapsed since 00:00:00 UTC on 1 January 1970, not counting leap seconds. It is widely used in databases, operating systems, and network protocols.
Systems using 32-bit signed integers to store Unix timestamps will overflow on January 19, 2038, at 03:14:07 UTC. Modern 64-bit systems solve this problem for billions of years.