Interactive controls could not load. Reload this page to try again; the content and guides below are still available.
Reload pageDeveloper Studio
Convert Unix seconds or milliseconds to ISO dates free online and convert dates back to Unix seconds. Use a valid date with Z or an explicit offset to confirm the time zone.
YOUR WORKSPACE
Convert Unix seconds or milliseconds to ISO dates free online and convert dates back to Unix seconds. Use a valid date with Z or an explicit offset to confirm the time zone.
Use this tool for free without a KitNelo account. Processing runs in your browser; input limits, browser support and device memory still apply.
Date interpretation depends on the provided time zone; use a valid ISO value including Z or an offset.
Read KitNelo data and privacy detailsEnter a Unix timestamp and inspect the generated ISO date to understand when the recorded event occurred. Confirm whether the source uses seconds or milliseconds before interpreting the output, since the wrong unit produces a very different date.
Provide a valid date value to calculate the corresponding Unix seconds. Include Z or a time zone offset in ISO input and verify the displayed result, so a local time is not mistaken for a different instant.
Paste a timestamp expressed in milliseconds and inspect its ISO date representation. Check the source field unit and compare a known event for confirmation; milliseconds and seconds describe the same time scale with different numeric magnitudes.
