How to Use Unix Timestamp Converter
Turn Unix timestamps (seconds or milliseconds) into ISO, UTC and local dates, or convert any date back to a timestamp. Includes a live-ticking current Unix time and a friendly relative-time readout.
Open the Unix Timestamp Converter tool →What is Unix Timestamp Converter?
Convert between Unix timestamps and human dates, with a live clock and relative time. 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 Converter
- Open the Unix Timestamp Converter tool.
- Paste or type your input.
- Set any options provided.
- Copy the result. Everything runs in your browser — nothing is uploaded.
Frequently asked questions
What is a Unix timestamp?
It's the number of seconds (or milliseconds) since 1 January 1970 UTC — a compact, timezone-free way to store a moment in time.
Does it support seconds and milliseconds?
Yes. It handles both and shows the human-readable date in your local time and in UTC.
Why does my timestamp look off by 1000x?
You're probably mixing seconds and milliseconds. JavaScript uses milliseconds, while many databases and APIs use seconds.
Ready to try it?
Open Unix Timestamp Converter →