Time
Unix Timestamp Converter
Convert Unix seconds or milliseconds to readable date-time values and convert date-times back to Unix time.
Unix Timestamp Converter result
- Local time on this device
- 1/1/1970, 12:00:00 AM
- Entered unit
- seconds
- Seconds
- 0
- Milliseconds
- 0
Select seconds or milliseconds explicitly; magnitude alone cannot identify the unit reliably near the Unix epoch.
Save or exportOptional
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How this tool works
Unix time counts elapsed seconds or milliseconds from 1970-01-01 00:00:00 UTC; readable local input is converted through the device time zone.
Assumptions
Unix input is explicitly identified as seconds or milliseconds since 1970-01-01 00:00:00 UTC; the tool does not infer units from magnitude. Wall-clock input uses the selected IANA zone.
Limits to know
Unix timestamps represent instants from the UTC epoch and exclude leap seconds. Browser date range, explicit seconds/milliseconds choice, time-zone rules, and ambiguous local clock times can limit conversion.