Question

If it is 12 noon at 60 E longitude, then explain what would be the time at 30 W longitude?

Answer 1

69 Deg means 69*4=276 min, East means time will be added. 12 Noon at Greenwich means 69 deg east will be 12 + 4 hr 36 min (276 min) = 4:36 pm.

30 deg means 30*4=120 min, West means time will be subtracted. 12 noon in Greenwich means 30 deg west will be 12 - 2 hr (12 min) = 10 am.

12 deg means 12*4=48 min, East means time will be added. 12 noon in Greenwich means 12 deg east will be 12 + 48 min = 12:48 pm.

Answer 2

6.00 PM

Explanation:

• "Local time" is the "official time" in a specific region/nation. That is Local time denotes the "specific time" of a certain place that is expressed in relation to the "longitudinal" line which passes via the place
• We know that local time of any place is determined by its "longitudinal location"
• The time at 30°W longitude can be ascertained with reference to "know the time" at any given "longitudinal location"
• The difference in the "longitudinal stretch" with "known reference" = 60°E+30°W = 90° (since they are east and west we add the longitude).Time that is taken to "travel longitudinal degree" that is, 1° = 4 minutes. We "multiply" it by 4 since the time difference between "2 longitudes" is "4 minutes".

• Time taken for 90°= 90 * 4 = 360 minutes = 6 hours
• Therefore, if it is 12noon at 60°E longitude, then time at 30°W longitude is "6.00 PM".

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