Unix Timestamp Converter
Turn a Unix timestamp in seconds or milliseconds into a UTC and local date, or a date back into an epoch.
Free · No sign-up · Your inputs stay in your browser
Input
Convert Unix time
Output
2026-01-01T00:00:00.000Z
Read as seconds
Thu, 01 Jan 2026 00:00:00 GMT
Your local time
Wed Dec 31 2025 18:00:00 GMT-0600 (Central Standard Time)
Date in seconds
1767259800
Date in milliseconds
1767259800000
Unix time counts seconds since 1970-01-01T00:00:00Z and ignores leap seconds. A signed 32-bit counter overflows at 2038-01-19T03:14:07Z, which is why old MySQL TIMESTAMP columns stop there.
Runs in this browser. Nothing you paste is sent to a server.
About this tool
Method, assumptions, practical next steps, and limits.
Seconds or milliseconds?
Unix tools, PHP's time() and MySQL's UNIX_TIMESTAMP() count seconds. JavaScript's Date.now() counts milliseconds. A 13-digit value is almost certainly milliseconds; the converter treats anything above 1011 that way.
The default value
1767225600 is 2026-01-01T00:00:00Z. Press Now to load the current time.
The year 2038
A signed 32-bit integer runs out at 2147483647, which is 2038-01-19T03:14:07Z. MySQL's TIMESTAMP type has the same upper limit, which is one reason to prefer DATETIME for dates far in the future.