Question

What day and time will it be at 90°W, if it is 4.30am on Monday at the Prime Meridian

Answer 1

Answer:

Difference in longitude = 45–15=30

■ If we start from 0° longitude (Prime Meridian) to east, with one passing longitude 4minutes will added.

■ So, 30 X 4 = 120 minutes = 2 hours ahead

■ So, time on 45°East will be 9 + 2= 11 am.