Time/unit

Unix timestamp converter

Paste Unix seconds, milliseconds, or an ISO date. See the matching UTC and local time.

Convert a timestamp

Open Time Zone Converter

What it accepts

A 10-digit value is treated as seconds. A 13-digit value is treated as milliseconds. An ISO string such as 2026-09-04T12:00:00Z is parsed as a date.

Use now

The Use now button fills the current time so you can copy an ISO string or compare it with a log timestamp.

Questions

Seconds or milliseconds?

If the number looks like 1710000000 it is seconds. If it looks like 1710000000000 it is milliseconds.

Which timezone is shown?

ISO output is UTC. Your browser also shows the local equivalent. For city-to-city conversion, use the Time Zone Converter in the same Time/unit tool.