Multiple choice general knowledge

The Indian Standard Time (IST) is

  1. 6 Hrs + GMT

  2. 5 1/2 Hrs + GMT

  3. 5 1/2 Hrs - GMT

  4. 6 Hrs - GMT
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Indian Standard Time (IST) is calculated based on the 82.5°E longitude. Since the Earth rotates 15° per hour, 82.5° translates to exactly 5 hours and 30 minutes. Because India is east of the Prime Meridian, IST is ahead of (+), not behind (-), Greenwich Mean Time (GMT).

AI explanation

To answer this question, we need to understand the concept of Indian Standard Time (IST) and its relation to Greenwich Mean Time (GMT).

Indian Standard Time (IST) is the time zone observed in India. It is determined by the longitude of India, which is approximately 82.5°E.

Greenwich Mean Time (GMT) is the time at the Prime Meridian, which is located at 0° longitude.

The correct answer is B) 5 1/2 Hrs + GMT.

This option is correct because India is located east of the Prime Meridian, so the time in India is ahead of GMT. The time difference between IST and GMT is 5 1/2 hours, with India being 5 1/2 hours ahead of GMT.

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