If it is 6 am at 30 degrees W, what time is it at 120 degrees W?
To determine the time difference between two points on Earth given their longitudes, you need to consider that the Earth rotates 360 degrees in 24 hours. This means that every 15 degrees of longitude corresponds to a time difference of 1 hour.
In this case, the time difference between 30 degrees W and 120 degrees W is 90 degrees. Since every 15 degrees corresponds to 1 hour, you need to divide 90 degrees by 15 to find the time difference in hours.
90 degrees / 15 degrees = 6 hours
Therefore, the time difference between 30 degrees W and 120 degrees W is 6 hours. If it is 6 am at 30 degrees W, adding the time difference of 6 hours will give you the local time at 120 degrees W.
6 am + 6 hours = 12 pm (noon)
So, it would be 12 pm (noon) at 120 degrees W if it is 6 am at 30 degrees W.