Question:
Indian Standard Time (82° 30'E) is ahead of Greenwich Mean Time by:
Indian Standard Time (82° 30'E) is ahead of Greenwich Mean Time by:
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To calculate the time difference from GMT based on longitude, multiply the degrees of longitude by 4 minutes per degree.
Updated On: Feb 16, 2025
- 2 hours
- 2 hours and 30 minutes
- 5 hours
- 5 hours and 30 minutes
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The Correct Option is D
Solution and Explanation
Indian Standard Time (IST) is based on the longitude of 82° 30'E. The Earth is divided into 24 time zones, with each time zone representing 15° of longitude. Each degree of longitude corresponds to 4 minutes of time.
- 82° 30'E corresponds to \( 82.5 \times 4 = 330 \) minutes ahead of Greenwich Mean Time (GMT), which is equal to 5 hours and 30 minutes.
Thus, IST is ahead of GMT by 5 hours and 30 minutes.
- 82° 30'E corresponds to \( 82.5 \times 4 = 330 \) minutes ahead of Greenwich Mean Time (GMT), which is equal to 5 hours and 30 minutes.
Thus, IST is ahead of GMT by 5 hours and 30 minutes.
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