Unix Timestamp Converter

A Unix timestamp (also called epoch time) is the number of seconds that have elapsed since January 1, 1970, 00:00:00 UTC — known as the Unix Epoch. It is a timezone-independent way to represent a specific moment in time, widely used in programming, databases, and APIs.

Paste or type the Unix timestamp (e.g., 1711238400) into the converter field. The tool instantly shows the equivalent date and time in UTC, your local timezone, and ISO 8601 format.

Classic Unix timestamps count seconds since the epoch (10 digits, e.g., 1711238400). JavaScript and many modern APIs use milliseconds (13 digits, e.g., 1711238400000). This tool auto-detects which format you're using and converts both.

Epoch refers to the starting reference point for a time system. The Unix epoch is January 1, 1970, 00:00:00 UTC. A Unix timestamp is simply how many seconds have passed since that moment. The word 'epoch' comes from its use as a fixed point from which time is measured.

Unix timestamps are timezone-agnostic, compact, and trivially comparable with simple arithmetic. Storing timestamps as integers avoids timezone ambiguities during sorting, filtering, or calculations. When displaying to users, you convert to local time — but the stored value stays universal.