Question

Indian Standard time (IST) is decided on the basis of the time of which longitude

Answer 1

Indian Standard Time is calculated on the basis of 82.58° E longitude, in Shankargarh Fort, Mirzapur ( 25.15°N82.58°E ) (in Mirzapur district in the state of Uttar Pradesh) which is nearly on the corresponding longitude reference line.

Answer 2

Answer:

• In India, the longitude of 82° E meridian is regarded as the standard time for the whole country.
• And this is known as the Indian Standard Time (IST). -Indian Standard Time which passes through Mirzapur, in Uttar Pradesh is calculated on the basis of 82°30'E longitude.

Hope it helps you..