How many hours are in one day?

Answer 1

There are 24 hours in a day. That's the " solar day". It's what most

people understand by the word "day". Technically it's the "mean solar day"

because it's the average time, allowing for natural variations, mainly in the

Earth's orbit around the Sun.

There are 23 hours and 56 minutes in a "sidereal day". That's the time the Earth takes to rotate once. The extra 4 minutes are needed to allow for the Earth's orbital motion around the Sun, which is not perfectly circular.

Answer 2

24