Does it support seconds and milliseconds?

Yes. The converter auto-detects whether your timestamp is in seconds or milliseconds based on its size, and shows both in the results.

Which timezones are shown?

Each result shows your local time, UTC, and the ISO 8601 string, so you can read the moment in whichever form you need.

Convert Unix epoch timestamps to readable dates and back online for free. Supports seconds and milliseconds, with local, UTC and ISO output.

Unix timestamp (seconds or milliseconds)

Unix (seconds)1786006689

Unix (milliseconds)1786006689000

Local time8/6/2026, 8:58:09 AM

UTCThu, 06 Aug 2026 08:58:09 GMT

ISO 86012026-08-06T08:58:09.000Z

Does it support seconds and milliseconds?: Yes. The converter auto-detects whether your timestamp is in seconds or milliseconds based on its size, and shows both in the results.
Which timezones are shown?: Each result shows your local time, UTC, and the ISO 8601 string, so you can read the moment in whichever form you need.