Convert between Unix timestamps and dates. Supports seconds and milliseconds, and instantly shows local time, UTC, ISO 8601, and relative time
Unix time represents a moment as the number of seconds elapsed since the epoch, 00:00:00 UTC on 1 January 1970. Because it expresses a worldwide time as a single timezone-independent number, it is widely used in programs, databases, and logs.
A Unix timestamp is usually expressed in seconds, but some environments such as JavaScript express it in milliseconds since the epoch. A seconds value is roughly 10 digits, while a milliseconds value is roughly 13 digits. This tool lets you switch between seconds and milliseconds.
A Unix timestamp itself is a UTC-based value with no time zone. This tool shows the converted date and time both in your device's local time zone and in UTC. All calculations run entirely in your browser.