Unix Timestamp Converter
Decode a timestamp from an API or log — or get the Unix time for any date you pick.
Accepts seconds (10 digits) or milliseconds (13 digits) — detected automatically
How it works
What is a Unix timestamp?
A Unix timestamp counts the number of seconds (or milliseconds) that have elapsed since January 1, 1970 at 00:00:00 UTC — a moment known as the Unix epoch. It's timezone-independent, making it the standard way to store and transmit time in APIs, databases, and log files.
Seconds vs. milliseconds
Most Unix timestamps you encounter in server logs and databases are in seconds (10 digits). JavaScript and many modern APIs use milliseconds (13 digits) for higher precision. This tool detects which format you've pasted automatically.
Local time vs. UTC
UTC is the universal reference — it's the same everywhere on Earth. Your local time is UTC offset by your browser's timezone. The results panel always shows both so you can verify against whatever system you're working in.
Frequently asked questions
1719446400. In milliseconds it's 13 digits, like 1719446400000. If you see a large integer in an API response or JWT token, there's a good chance it's a Unix timestamp.