Developers meet Unix timestamps in logs, databases and APIs. A number like 1700000000 means nothing until you convert it.
Try it now: Unix Timestamp Converter
Free, no sign up, and the file stays on your device.
Open Unix Timestamp ConverterTimestamp to date
- Open Unix Timestamp Converter.
- Paste the number. Seconds and milliseconds are detected for you.
- Read the date in UTC, ISO 8601 and your own time zone.
Date to timestamp
- Choose a date and time in the second box.
- Copy the value in seconds or milliseconds.
Good to know
- A Unix timestamp counts seconds since 1 January 1970 UTC.
- JavaScript uses milliseconds, so those numbers have 13 digits.
- The date you choose is read in your own time zone.
Frequently asked questions
Is anything uploaded?
No. Everything is calculated in your browser, so what you type stays on your device.
Ready to start?
Open Unix Timestamp Converter