Free online tool

Unix Time Converter

Detect seconds versus milliseconds, convert in both directions, and keep UTC explicit.

UTC-

Method

Time standard and daylight saving rules

City choices use IANA time-zone identifiers. The applicable offset is resolved for the selected date, so daylight saving transitions are not treated as a permanent offset.

Local times skipped during a spring-forward transition are reported as invalid. Historical and future rules depend on the time-zone database shipped with the browser.

Reference: IANA Time Zone Database.

Questions

Unix Time Converter FAQ

What is a Unix timestamp?

It is the number of elapsed seconds since 1970-01-01 00:00:00 UTC, excluding leap seconds.

How can I tell seconds from milliseconds?

Modern timestamps with 13 digits are commonly milliseconds; 10-digit values are commonly seconds.

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