What Causes Day and Night? Earth’s Rotation:. Earth’s rotation occurs from west to east, which is why the Sun always appears to be rising on the Axial Tilt:. As already noted, due to the Earth’s axial tilt (or obliquity), day and night are not evenly divided. Seasonal Changes:. Of course, since
Jared spins our earth to explain why we have day and night. Visit our channel for over 300 videos that explain science! Please subscribe.What Causes the Day/Night Cycle on Earth? Length of a Rotation. A solar day, 24 hours, is the time it takes for the Earth to rotate exactly once so that the sun Longer and Shorter Days. Although a solar day is 24 hours, not every day has 12 hours of daylight and 12 hours of night. The Solstices.poVJxl.