If Earth makes one complete rotation on its axis every 23 hours and 56 minutes, how does day and night not being flipped on our clocks after six months? (6monthx30dayx4min/60=12hour)

Question

And why leap year happens once per 4 years only to address this?

In: 1081

Answer 1

Because Earth is moving around the sun, so the sun “moves” in the sky 4 minutes per day, taking about 365 days to make a complete “rotation” around the Earth (with minor corrections.)