NEW!!! Images with different projections are now available, updated once per hour. Click the thumbnails at the bottom of the page to see the full size images.

This image shows the daylight, twilight and darkness regions of the Earth and is updated quarter-hourly (unless our server is too busy!). The red star marks the location where the sun is directly overhead, and the red curve marks where the sun is on the horizon (setting or rising).

Sunclock using a Robinson projection

Sunclock using Orthographic projections from different directions