It is 1:00 PM on Friday at 90 degree W. What time is it at 90 degree E?
a. 7:00 PM Friday;
b. 7:00 AM Friday;
c. 7:00 AM Saturday;
d. 1:00 AM Saturday;
e. 1:00 PM Saturday.
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If it is 1:00 PM on Friday at 90 degree W, the time will be 1:00 AM Saturday at 90 deg. E.
To calculate the amount of time difference between locations, you need to first find the difference in longitude of the two given places by adding the two numbers.
Then, divide the value by the 15 degrees that occurs in one hour to know the time difference between two locations via International Date Line on world map. Also, you will need to add the numbers if you are going east, and subtract the number if you are going west.
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