180° is half of a full rotation, so the answer is half of a day or twelve hours (ignoring the variables that contribute to the equation of time offset).
360 divided by 24 is 15. Times 2 is 30...I don't know if there are other factors that come into play, but it seems right.
A full rotation of Earth is considered one day if only the planet is observed, therefore the Earth will rotate 360 degrees in a day. If the rotation of the Earth is taken into account with the orbit around the sun, the Earth will rotate just under 361 degrees per day.
If the Earth rotates 15 degrees/hour, then 7.5 degrees is half of 15, so it takes half an hour or 30 minutes.
You are a clever questioner, indeed. You have asked a subtle and interesting question. You probably know that there are at least two distinct answers to the question, because there are two different kinds of day. The sidereal day is the period during which earth rotates 360 degrees relative to the distant stars (not the sun). If you were far above the solar system looking down on earth from the north, you would see that earth rotates a full 360 degrees relative to the stars, but still has to rotate a little more to reach the starting point relative to the sun, because we orbit the sun, this complicates things a little bit. So in a sidereal day, the earth rotates exactly 360 degrees, but this day lasts only 23 hours 56 minutes and 4.1 seconds, roughly. The synodic day is the period during which earth rotates one time relative to the sun. This rotation will be slightly more than 360 degrees, because as explained above the earth has to rotate a little extra (beyond a full 360 degrees) in order to reach the starting point relative to the sun. This is the day as we typically experience it. So if you are asking about the earth's rotation during a synodic day, the rotation is closer to an average of 360.9856 degrees per day. Another way to look at this is to consider the earth's coordinate system. There are 360 degrees of longitude. It is possible to consider the earth's degrees of longitude as the basis of your measurement, so that you can say the earth rotates 360 degrees of longitude relative to the sun on average each day, even though the absolute rotation of the earth is closer to 360.9856 degrees on average.
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.
In almost exactly 24 hours.
The Earth rotates through 360 degrees longitude every 24 hours.
Every 15 degrees represent one hour. There are 360 degrees around the Earth. Divide 360 by 15 and you 24 - the number of hours in a day, and the time it takes the Earth to rotate on its axis.
There is no 200 degrees of longitude. There is 180 degrees west of the Greenwich Meridian and 180 degrees east of the Greenwich Meridian. All degrees of longitude on earth converge at the South and North Poles.
Roughly 4 minutes.
180° is half of a full rotation, so the answer is half of a day or twelve hours (ignoring the variables that contribute to the equation of time offset).
1 hour
It locates a place through degrees
The Earth rotates at the rate of roughly 15 degrees of longitude per hour.
The Earth rotates at the rate of roughly 15 degrees of longitude per hour.
360 Degrees
360 degrees