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KuponGuru

Timestamp Converter

Unix timestamps to readable dates in any time zone, and dates back to timestamps — seconds to nanoseconds.

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About the Timestamp Converter

Paste a Unix timestamp from a log, database or API and see the date it means — in UTC, in your own time zone and in any other, with how long ago it was. The converter works out whether the number is in seconds, milliseconds, microseconds or nanoseconds and tells you which it assumed. It also turns a date and time back into a timestamp.

How to use it

  1. 1Paste a timestamp or a date, or use the current time.
  2. 2Check the detected unit and choose a time zone.
  3. 3Copy the date, ISO 8601 text or timestamp you need.

Questions

How does it know if a timestamp is in seconds or milliseconds?

By its length. Dates from 2001 to 2286 are 10 digits in seconds, 13 in milliseconds, 16 in microseconds and 19 in nanoseconds. The detected unit is always shown, so you can see the assumption it made.

What time zone is a Unix timestamp in?

None — it counts seconds since 1 January 1970 in UTC, so the same number is the same moment everywhere. The time zone only matters when it is shown as a date, which is why the converter shows several.

Is my text uploaded or stored?

No. The tool runs in this browser tab. What you paste is never sent to KuponGuru, and it is gone when you close the tab.

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