Question

why is standard meridian of India? why is it selected as the standard meridian of India​

Answer 1

Answer:

From Gujarat to Arunachal Pradesh there is a time lag of two hours. Hence, time along the Standard Meridian of India (82° 30' E) passing through Mirzapur (in Uttar Pradesh) is taken as the standard time for the whole country

Explanation:

Answer 2

Standard Meridian is the meridian (longitude)which is used to describe time of a country , it should be the same for the whole country and all the places in a country should follow this same time

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The standard meridian of India is 82.5 ° E and it passes through the center of our country and passes through  Mirzapur in Uttar Pradesh

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its significance is that

1)there will be no confusion about time in an country

2)all the places in a particular country will have the same time