Convert a Unix timestamp
Convert between a Unix timestamp and a human-readable date and time. See it as ISO 8601, UTC, your local time, and relative to now.
Conversion happens on your device. Nothing is uploaded to our servers.
Fullscreen
Unix timestamp
01
Pick a direction
Convert a Unix timestamp to a date, or a date to a Unix timestamp.
02
Enter a value, or use Now
The Now button fills in the current time in either mode.
03
Read every format at once
Seconds, milliseconds, ISO 8601, UTC, local time, and relative to now.
Frequently asked
Is anything sent to a server?
No. The conversion runs entirely in your browser using the JavaScript Date object.
What timezone is "Local" in?
Whatever timezone your device is set to. It reads that directly from your browser, nothing is asked or configured.
Seconds or milliseconds. Which is a "Unix timestamp"?
Seconds is the original Unix definition and what most APIs and databases use. JavaScript's own Date.now() returns milliseconds, which is why both are offered.
Does this work offline?
Yes, once the page has loaded.