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.

No. Conversion happens entirely in your browser and nothing you paste is uploaded.

Convert Unix epoch timestamps to readable dates and back, free. Seconds and milliseconds, with local, UTC and ISO output — all in your browser.

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Unix timestamp (seconds or milliseconds)

Unix (seconds)1791065784

Unix (milliseconds)1791065784000

Local time10/3/2026, 10:16:24 PM

UTCSat, 03 Oct 2026 22:16:24 GMT

ISO 86012026-10-03T22:16:24.000Z

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.
Are the timestamps I paste sent to a server?: No. Conversion happens entirely in your browser and nothing you paste is uploaded.