World Date and Time computes local time, calendars, holidays, and sun and moon times in the browser. Open a city page, the world clock, or a calculator. JavaScript is needed for the live clocks.World clock · About · Privacy · Terms · Contact

Clocks for other sites

Open the clock page or the countdown page. Copy the iframe snippet. Those two URLs may be framed from other sites.

The free clock page is /embed/clock. The countdown page is /embed/countdown. Both stay on this host. They are noindex, so they do not compete with the UTC and countdown documents.

Example: <iframe src="https://worlddateandtime.com/embed/clock" title="UTC clock" width="320" height="180"></iframe>

Framing

Iframe

The widget is a URL on this host

Copy the iframe. The clock still runs in the visitor's browser. We dropped a frame-busting header so other sites can embed those two paths.

UTC

The full UTC document

The embed is the face only. History, leap seconds, and GMT live on the UTC page.