Timestamp Converter
Convert Unix timestamps in seconds or milliseconds to dates, or dates to timestamps, for logs and API debugging.
FreeBrowserAbout Timestamp Converter
Convert Unix timestamps in seconds or milliseconds into readable dates, or generate a timestamp from a selected date and time. Compare local and UTC displays when checking an API time field.
When to use this tool
- Interpret a timestamp from an API response.
- Create a timestamp for a scheduled test fixture.
Limits to know before using it
Local date displays depend on the device timezone. A seconds value mistaken for milliseconds produces the wrong date; confirm the source unit and timezone.
Data handling and cost
The main operation runs in your browser; tool input is not uploaded for processing. The site can still use session cookies and collect operational or usage data as described in the privacy policy.
Free to use in your browser, with no sign-in needed.
Frequently Asked Questions
Unix timestamps in seconds and milliseconds, ISO 8601 strings (with and without timezone), and a datetime picker for local time input. The tool converts between all of these and shows the result in multiple formats simultaneously.
Yes. The tool detects your browser's timezone and shows local time alongside UTC. You can also see the UTC offset for the detected timezone.
It fills in the current Unix timestamp so you can quickly see what the current time looks like in all formats. Useful as a reference point when working with relative timestamps.