Question
Explain Indian Standard Time.

Answer

  1. The longitudinal extend of India is from 68° 7’E to 97° 25’E
  2. As many as twenty-nine lines of longitude pass through India.
  3. Having 29 standard times is not logical.
  4. Hence 82 1/2° E line of longitude is observed as the prime meridian to calculate the Indian standard Time.

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