If it is 10:00 PM on July 3rd at 30° west,what date and time is it at 15° east?
A)July 3rd; 11 PM.
B)July 3rd; 9 PM.
C)July 3rd; 6 PM.
D)July 4th; 1 AM.

Question

Quizplus · Accepted Answer

30° west and 15° east are 45° apart. Since the Earth rotates 15° per hour, it takes 3 hours for a location to move 45°. Therefore, at 10:00 PM on July 3rd at 30° west, it is simultaneously 1:00 AM on July 4th at 15° east.

If It Is 10:00 PM on July 3rd at 30°