Earth's Motion – Day, Night, Time Zones and Seasons

GeographyEarth in SpaceAges 11–12

On the left, Earth orbits the Sun with its axis tilted 23.5° and always pointing the same direction; drag Earth along its orbit to pick a date (spring equinox, summer solstice, autumn equinox, winter solstice). On the right, Earth spins on its axis; the lit half is daytime. Drag the observer up or down to change latitude and see day length, night length, and season change in each hemisphere, along with the latitude where the Sun is directly overhead. Local time, time zone (15° per zone), and GMT are shown live.