Question

the time at 30°E is 2p.m what will be the time at Greenwich●●■♡♢

Answer 1

Time at 30°E is 2p.m or internationally 14 hours
The longitude at Greenwich is 0° i.e. the prime meridian
No. of longitude from 0°W to 30°E is 30°
To cross 1° longitude 4 minutes of time is taken.
To cross 30°, the time required is 30×4=120minutes i.e.2 hours
As we move towards the west, time is to be substracted.
So, time at Greenwich is 14-2=12 hours or 12 p.m.

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