How to Use Unix Timestamp Investigator
Paste a timestamp and auto-detect whether it's seconds, ms, µs or ns, then decode the date.
Open the Unix Timestamp Investigator tool →What is Unix Timestamp Investigator?
Paste a timestamp and auto-detect whether it's seconds, ms, µs or ns, then decode the date. It's completely free, needs no sign-up, and runs entirely in your browser — so it's fast and private.
How to use Unix Timestamp Investigator
- Open the Unix Timestamp Investigator tool.
- Paste or type your input.
- Set any options provided.
- Copy the result. Everything runs in your browser — nothing is uploaded.
Frequently asked questions
How does it detect the unit?
By the number's magnitude — it decides whether the timestamp is in seconds, milliseconds, microseconds or nanoseconds, then decodes the date.
Why does this matter?
APIs and logs disagree on precision. JavaScript uses milliseconds while many systems use seconds — mixing them is off by 1000×.
Ready to try it?
Open Unix Timestamp Investigator →