clocknow

Sun & sky

Day and night on Earth

The shaded half of the planet is in darkness. The sun is directly overhead at one point, and the line between day and night moves 15 degrees of longitude every hour.

Now

How to use it

Drag the globe to turn it, or focus it and use the arrow keys. Click or tap a city dot to see its local time and whether it is day, twilight or night there. Move the time shift slider up to a day either way to watch the line sweep around the Earth, and press Now to come back.

The sun's position comes from the same engine as our sunrise and sunset pages and is accurate to a fraction of a degree. Twilight here means the sun is less than 6 degrees below the horizon. For the exact times at a place, open its page below. Land outlines are from Natural Earth (public domain).

Cities on the map

Tap anywhere for fullscreen