If it is 10:00 PM on July 3rd at 30 degrees west, what date and time is it at 15 degrees east?
A) July 3rd; 11:00 PM
B) July 3rd; 9:00 PM
C) July 3rd; 6:00 PM
D) July 4th; 1:00 AM
E) July 4th; 2:00 AM

Question

Quizplus · Accepted Answer

Every 15 degrees of longitude represents a time difference of one hour. Therefore, moving from 30 degrees west to 15 degrees east represents a total difference of 45 degrees or three hours. Since it is 10:00 PM on July 3rd at 30 degrees west, moving three hours ahead brings us to 1:00 AM on July 4th at 15 degrees east. Therefore, the correct answer is D) July 4th; 1:00 AM.

If It Is 10:00 PM on July 3rd at 30