Question

What is meant by indian standard time?why do we need a standard meridian for india . explain

Answer 1

India is a very big country. In order to maintain the uniformity of time within the country the Standard Meridian of India is taken as 82 ½ ° E longitude. It passes through the city of Allahabad. The local time along this Meridian serves as the Indian Standard Time (I.S.T) . The local time of Mirzapur near Allahabad is taken as the standard time all over India . I.S.T is 5:30 hours ahead of G.M.T (Greenwich Mean Time) located in London.
Standard Meridian of India is needed to maintain time uniformity in India. 82 ½ ° has been selected as the Standard Meridian of India due to the following reasons :
1. This is a central Meridian of India as it divides the country into two equal parts. 2.This Central Meridian helps India to adopt time uniformity.

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Answer 2

Answer:

Indian standard time is the uniform time calculated by the standard meridian of India.it is called as Indian standard time(IST).

Explanation:

1.India is large country almost 30 degrees are passing from westernmost state to easternmost state Arunachal parish.

2.due to that there is a difference of two zones.

3.to avoid confusion for having different timming in different states of India,one standard meridian is taken to have a uniform time for the entire country.

4.therefore,at 82'30E has been taken as standard meridian of India which is almost passing from centre of India.