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Why is one official time kept despite local time difference in India's east-west extent?

Answer and explanation

Correct answer: For coordination of activities at the national level

Earth rotates 15 degrees of longitude in approximately one hour, so places at different longitudes experience different local solar times. India’s broad east–west extent therefore produces a noticeable local-time difference between its eastern and western parts. A single official time, Indian Standard Time, is adopted using the Standard Meridian at 82°30'E. This common time simplifies railway and air schedules, schools, offices, broadcasting, communication and administration across the country. Option A is correct because it states the practical national purpose. The other options are impossible: a time standard cannot erase longitudes, change area or remove the Tropic of Cancer.

Related tags

Standard TimeIndia LongitudeTime ZonesIndia And Its NeighboursIndia LocationGeographyClass 11 Mcq

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