Question

what do you mean by standard Meridian why is it necessary to have a standard Meridian

Answer 1

standard meridian is the longitudinal line taken to measure the time of a country. it is necessary to have a standard meridian cause it will be hard measuring different times for large countries

Answer 2

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The time of a place depends on the longitude that passes through it. Therefore, the standard time for each country is usually taken as the time of the central meridian that passes through it.Thus, we need a standard meridian for the country. In India 82 ½ °E longitude determines the standard time.