What is formula to calculate local time and longitude in geography?

1.	What is formula to calculate local time and longitude in geography?
Answer» Explanation: Time at Greenwich = 7:30 pm Greenwich is the 0°longitude. Time at given place = 12 pm Difference between the time at both places = 7 HOURS 30 mins. Since the time at given place is LESS than that at the Greenwich meridian, the place is to the west of it. It takes 4 minutes for the EARTH to COVER 1° Therefore, it will take 60 minutes (1 hour) to cover 15° So, the Earth will cover 112.5°(15x7.5) in 7.5 hrs Thus, the location of the place is 112.5°West

Answer»

Explanation:

Time at Greenwich = 7:30 pm

Greenwich is the 0°longitude.

Time at given place = 12 pm

Difference between the time at both places = 7 HOURS 30 mins.

Since the time at given place is LESS than that at the Greenwich meridian, the place is to the west of it.

It takes 4 minutes for the EARTH to COVER 1°

Therefore, it will take 60 minutes (1 hour) to cover 15°

So, the Earth will cover 112.5°(15x7.5) in 7.5 hrs

Thus, the location of the place is 112.5°West

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