Answer :

India, the 7th largest country in the world and it has a vast longitudinal extent. India is located between 687’E and 9725’E. The longitudinal difference between the easternmost (Arunachal Pradesh) and westernmost (Gujarat) limits is approximate 30


As we know that the sun takes 4 minutes to cross 1 longitude. (One rotation completed by earth in 24 hours (1440 min). Total no. of longitudes is 360. Therefore 1440 ÷ 360= 4min)


So, to cross 30 longitudes, it will take 120 minutes or 2 hours.


To avoid confusion of time difference along the longitudes 8230’E is considered as the Standard Meridian of India. Therefore, all the places in India have the same time.


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