Give geographical reasons
The standard time of India has been decided by the local time at 82.5 degree E longitude
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The Earth has been divided into 24 time zones of one hour each. Each of these zones covers 15 degrees of longitude.
As the local time differs by 4 minutes at every longitude, it would create a lot of confusion regarding time for any country as a whole which may stretch across several longitudes.
Therefore each country selects a central meridian and the local time of this meridian is the standard time of that country.
The local times which lie on different meridians are bound to differ.
The sun rises two hours earlier in Arunachal Pradesh as compared to Gujarat.
This causes a time lag of 2 hrs from Gujarat to Arunachal Pradesh to avoid confusion and to have a standard time for reference, The 82.30'Eastern Longitude has been taken as the standard time for the whole country.
The local time at this Meridian has been accepted as the Indian Standard Time (IST) throughout the country because it passes through the middle of the country.
It has helped to avoid a lot of confusion which would have been there by following different local times or in absence of a uniform time.
Hope this will help you
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As the local time differs by 4 minutes at every longitude, it would create a lot of confusion regarding time for any country as a whole which may stretch across several longitudes.
Therefore each country selects a central meridian and the local time of this meridian is the standard time of that country.
The local times which lie on different meridians are bound to differ.
The sun rises two hours earlier in Arunachal Pradesh as compared to Gujarat.
This causes a time lag of 2 hrs from Gujarat to Arunachal Pradesh to avoid confusion and to have a standard time for reference, The 82.30'Eastern Longitude has been taken as the standard time for the whole country.
The local time at this Meridian has been accepted as the Indian Standard Time (IST) throughout the country because it passes through the middle of the country.
It has helped to avoid a lot of confusion which would have been there by following different local times or in absence of a uniform time.
Hope this will help you
Mark as brainliest if you like.....
Answered by
10
Answer:
The Indian Standard Time (IST) has been decided accordingly to the 82°30'E longitude which passes through Mirzapur (near Allahabad, Uttar Pradesh). This longitude passes through the middle of the country with reference to its longitudinal extent. The local time at this longitude has been selected as the standard time of the whole country. When the sun is directly overhead on this longitude, then it is assumed that it is 12 noon everywhere in India. There is no difference of more than on hour between the local time at 82°30'E and other places in the country.
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