Question

_________ is the Meridian on which the Indian Standard Time is based.

1. 81 and 1/2 Degree east longitude
2. 82 and 1/2 Degree east longitude 
3. 84 and 1/2 Degree east longitude
4. 83 and 1/2 Degree east longitude

Answer 1

Correct Answer - Option 2 : 82 and 1/2 Degree east longitude 

The correct answer is 82 and 1/2 Degree east longitude.

• 82 and 1/2 Degree east longitude is the Meridian on which the Indian Standard Time is based.
  • The longitude of 82½° E (82° 30'E) is considered as the standard meridian.
  • The local time stated or mentioned at this meridian is considered as the standard time for the whole country.
  • This is called the Indian Standard Time (IST).
• Hence, option 2 is correct.

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• The standard meridian of India passes through the following states :
  • Uttar Pradesh
  • Madhya Pradesh
  • Chattisgarh
  • Orissa
  • Andhra Pradesh
• About Standard Meridian
  • The Standard Meridian of India having the longitude 82°30’E, which passes through Mirzapur in Uttar Pradesh is considered as the standard time for the whole country
  • Standard time is referred to as the synchronization of clocks within a certain geographical area to a single standard time, instead of using solar time or a locally chosen meridian (longitude) to establish a local mean time standard
  • A standard meridian is established in every country so that it is the central longitude of the whole country and at the same time is throughout the country.