Unix Time Converter
Convert Unix timestamps to local time, UTC, and relative time — and back. Free online Unix time converter for developers. Runs in your browser.
About the Unix Time Converter
Unix time counts the seconds since January 1, 1970 UTC. This converter turns a timestamp into readable local time, UTC, and relative time, and converts a chosen date back into a timestamp. Everything runs in your browser — nothing is uploaded.
Common use cases
- Debugging logs: read timestamps from APIs and databases.
- Scheduling: compute a timestamp for a specific date and time.
- Data checks: confirm a record’s date or day of year.
How it works
- Enter a timestamp, or click Now for the current time.
- Or pick a date and time and convert it to a timestamp.
- Copy any formatted value you need.
Frequently asked questions
Seconds or milliseconds?
This tool uses seconds. If your value is in milliseconds, divide by 1000 first.
Is my data uploaded?
No. Conversion happens locally in your browser — nothing leaves your device.