WBCS.LIVE practice question

Indian standard time is calculated along the line of longitude passing through

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. 82°30' E passing through Allahabad
  2. 80°30' E passing through Delhi
  3. 88°30' E passing through Kolkata
  4. 84°00' E passing through Nashik

Correct answer and explanation

Correct answer: 82°30' E passing through Allahabad

Explanation: ✅ Correct Answer: A) 82°30' E passing through Allahabad 📚 Explanation: Indian Standard Time (IST) is calculated based on the longitude of 82°30' E, which passes through Mirzapur, near Allahabad (Prayagraj). This longitude was chosen as the standard meridian because it is roughly in the center of the country's east-west extent. It is exactly 5 hours and 30 minutes ahead of Greenwich Mean Time.