24 hours (approximately). The "solar day" is exactly 24 hours, but it actually takes about 23 hours and 56 minutes for the Earth to rotate once.
The extra four minutes are needed to allow for the change in position of the Sun in the sky due to the Earth orbiting the Sun.
Answer:
While the basis for the hour is the length of the "solar day" split into 24 parts (so you'd think the day should be 24 hours long - exactly), this is only an average value, not an absolute value. At the equinoxes and solstices the day can be up to 19 seconds longer or shorter. Added to this is the gradual slowing down of the Earth's rotation due to the tidal friction which stretches the day slightly longer than it was in the past.
Edit: To clarify that Answer, there is something called the "sidereal day" which is the rotation time. But there's also the "solar day" which is exactly 24 hours.
That's what we normally call "a day", on Earth. Strictly speaking it's called the "mean solar day".
The word "mean" is just another way of saying "average".
There are variations in the "apparent solar day", but the "mean solar day"
averages out all the slight differences. This gives us the exact 24 hour day
which is, of course, much more convenient.
Mars rotates on its axis in 24.6 earth hours = 1.025 earth days.
It goes right round 360 degrees in 24 hours, so 6 hours for 90 degrees, relative to the Sun. Relative to the distant stars, it takes the Earth about 5 hours, 59 minutes to rotate 90 degrees.
hi earth rotate two time in 24 hour at 180 degree ..because earth is round and it has total longitude 360 degree and earth take 24 hour to move on its axis .. so it cover two time rotate of 180 degree
Here are the approximate rotation periods for each planet in the solar system: Mercury: 59 Earth days Venus: about 243 Earth days (retrograde rotation) Earth: about 24 hours Mars: about 24.6 hours Jupiter: about 10 hours Saturn: about 10.7 hours Uranus: about 17.2 hours Neptune: about 16 hours
A day consists of 24 hours because it is based on the time it takes for the Earth to complete one full rotation on its axis. This division into 24 hours is a convention that has been used for centuries for practical and cultural reasons.
it takes 24 hours
23 hours and 56 minutes.
IT TAKES THE EARTH 360 DAYS TO ROTATE. it actually takes 365 days to orbit the sun and 23 hours 55 min to rotate on its axis
23h 56m
24 hours
it takes about 6 months earth time for mars to rotate around the sun
Seven times-once a day-totalling 168 hours
It depends which planet you mean - the Earth takes 23 hours & 56 minutes to rotate once.
For Earth to rotate 60° will take four hours. Ish.Earth takes 24 hours (approximately) to rotate a full 360°. 60° is 1/6 of this, so divide the full 24 hours by 6 to get 4 hours.
Mars rotates on its axis in 24.6 earth hours = 1.025 earth days.
16.11 hours.
24 hours, approximately.