Timestamp Converter
Decode a timestamp without the thousandfold mistake. Pick the unit explicitly and see UTC beside your local timezone.
Work here
Processed on your device. Input is never uploaded or saved.
Your result
How to use Timestamp Converter
- Enter your own input or try the example above.
- Choose the mode that matches your task. Results update as you edit; random generators run only when you choose Generate.
- Review the result, then copy or download it. Closing this tab discards the input.
One epoch, two common units
Unix seconds count from 1970-01-01T00:00:00Z. Many JavaScript APIs use milliseconds instead. Select the unit deliberately; digit counts are clues, not a reliable contract.
Use an explicit timezone
For date-to-timestamp conversion, enter an ISO 8601 date with Z or an offset such as +03:00. A bare calendar date or timezone-free datetime is ambiguous and is rejected.
Limits
Leap seconds are not represented by Unix time. This tool accepts whole timestamps within JavaScript’s supported date range and shows your browser’s local timezone independently of UTC.