MCQs on Indian Standard Time (IST) – Geography
Q1. Indian Standard Time (IST) is ahead of Greenwich Mean Time (GMT) by:
a) 3 hours 30 minutes
b) 4 hours 30 minutes
c) 5 hours 30 minutes
d) 6 hours 30 minutes
Show Answer
Correct Answer: c) 5 hours 30 minutes
Explanation: IST is 5 hours and 30 minutes ahead of GMT.
Q2. The Indian Standard Time Meridian passes through which of the following states?
a) Gujarat
b) Maharashtra
c) Uttar Pradesh
d) West Bengal
Show Answer
Correct Answer: c) Uttar Pradesh
Explanation: The Indian Standard Time Meridian (82.5°E) passes through Mirzapur in Uttar Pradesh.
Q3. The longitude used to calculate Indian Standard Time (IST) is:
a) 75°E
b) 82.5°E
c) 90°E
d) 97.5°E
Show Answer
Correct Answer: b) 82.5°E
Explanation: IST is calculated based on the 82.5°E longitude, which passes through Mirzapur in Uttar Pradesh.
Q4. How many time zones does India officially observe?
a) 1
b) 2
c) 3
d) 4
Show Answer
Correct Answer: a) 1
Explanation: India officially observes a single time zone, Indian Standard Time (IST).
Q5. When it is 12:00 PM (noon) in London (GMT), what time is it in India (IST)?
a) 4:30 PM
b) 5:30 PM
c) 6:30 PM
d) 7:30 PM
Show Answer
Correct Answer: b) 5:30 PM
Explanation: India (IST) is 5 hours and 30 minutes ahead of London (GMT), so when it is 12:00 PM in London, it is 5:30 PM in India.
Q6. If it is 10:00 AM in India (IST), what would be the local time at Shillong (92°E longitude)?
a) 9:22 AM
b) 10:22 AM
c) 10:38 AM
d) 9:38 AM
Show Answer
Correct Answer: c) 10:38 AM
Explanation: Shillong is located at 92°E longitude, which is 9.5° east of the Indian Standard Time Meridian (82.5°E). Since each degree of longitude corresponds to 4 minutes of time, the local time at Shillong would be 38 minutes ahead of IST, making it 10:38 AM.
Q7. Which of the following cities is closest to the Indian Standard Time (IST) meridian?
a) Mumbai
b) Kolkata
c) New Delhi
d) Hyderabad
Show Answer
Correct Answer: c) New Delhi
Explanation: New Delhi is the closest city to the Indian Standard Time (IST) meridian (82.5°E), as it is located at approximately 77°E longitude.
Q8. When it is 6:00 PM in Sydney (AEST), what time is it in India (IST)?
a) 12:30 PM
b) 1:30 PM
c) 2:30 PM
d) 3:30 PM
Show Answer
Correct Answer: b) 1:30 PM
Explanation: Sydney (AEST) is 4 hours and 30 minutes ahead of India (IST), so when it is 6:00 PM in Sydney, it is 1:30 PM in India.
Q9. Which of the following countries shares the same time zone as India (IST)?
a) Pakistan
b) Bangladesh
c) Sri Lanka
d) Nepal
Show Answer
Correct Answer: c) Sri Lanka
Explanation: Sri Lanka shares the same time zone as India, observing Indian Standard Time (IST).
Q10. When it is 3:00 PM in Tokyo (JST), what time is it in India (IST)?
a) 10:30 AM
b) 11:30 AM
c) 12:30 PM
d) 1:30 PM
Show Answer
Correct Answer: b) 11:30 AM
Explanation: Tokyo (JST) is 3 hours and 30 minutes ahead of India (IST), so when it is 3:00 PM in Tokyo, it is 11:30 AM in India.
Q11. The Indian Standard Time (IST) Meridian does not pass through which of the following states?
a) Uttar Pradesh
b) Madhya Pradesh
c) Chhattisgarh
d) Odisha
Show Answer
Correct Answer: d) Odisha
Explanation: The Indian Standard Time (IST) Meridian (82.5°E) passes through Uttar Pradesh, Madhya Pradesh, and Chhattisgarh, but not through Odisha.
Q12. If it is 10:00 AM in India (IST), what would be the local time at 120°E longitude?
a) 2:30 PM
b) 3:30 PM
c) 4:30 PM
d) 5:30 PM
Show Answer
Correct Answer: c) 4:30 PM
Explanation: The 120°E longitude is 37.5° east of the Indian Standard Time Meridian (82.5°E). Since each degree of longitude corresponds to 4 minutes of time, the local time at 120°E longitude would be 2 hours and 30 minutes ahead of IST, making it 4:30 PM.
Q13. When it is noon at the Indian Standard Time (IST) meridian, what would be the local time at 120°E longitude?
a) 2:30 PM
b) 3:30 PM
c) 4:30 PM
d) 5:30 PM
Show Answer
Correct Answer: c) 4:30 PM
Explanation: The 120°E longitude is 37.5° east of the Indian Standard Time Meridian (82.5°E). Since each degree of longitude corresponds to 4 minutes of time, the local time at 120°E longitude would be 2 hours and 30 minutes ahead of IST, making it 4:30 PM when it is noon at the IST meridian.
Q14. If it is 10:00 AM in India (IST), what would be the local time at the International Date Line (180° longitude)?
a) 2:30 AM (next day)
b) 3:30 AM (next day)
c) 4:30 AM (next day)
d) 5:30 AM (next day)
Show Answer
Correct Answer: d) 5:30 AM (next day)
Explanation: The International Date Line (180° longitude) is 97.5° east of the Indian Standard Time Meridian (82.5°E). Since each degree of longitude corresponds to 4 minutes of time, the local time at the International Date Line would be 6 hours and 30 minutes ahead of IST, making it 5:30 AM on the next day.
Q15. If it is 10:00 AM in India (IST), what would be the local time at 60°E longitude?
a) 6:00 AM
b) 7:00 AM
c) 8:00 AM
d) 9:00 AM
Show Answer
Correct Answer: c) 8:00 AM
Explanation: The 60°E longitude is 22.5° west of the Indian Standard Time Meridian (82.5°E). Since each degree of longitude corresponds to 4 minutes of time, the local time at 60°E longitude would be 1 hour and 30 minutes behind IST.
Q16. When it is 6:00 PM in New York (EST), what time is it in India (IST)?
a) 3:30 AM (next day)
b) 4:30 AM (next day)
c) 5:30 AM (next day)
d) 6:30 AM (next day)
Show Answer
Correct Answer: b) 4:30 AM (next day)
Explanation: India (IST) is 9.5 hours ahead of New York (EST), so when it is 6:00 PM in New York, it is 4:30 AM the next day in India.
Q17. Which of the following states is farthest from the Indian Standard Time (IST) meridian?
a) Rajasthan
b) Tamil Nadu
c) Arunachal Pradesh
d) Goa
Show Answer
Correct Answer: c) Arunachal Pradesh
Explanation: Arunachal Pradesh is the farthest state from the Indian Standard Time (IST) meridian (82.5°E) as it is located in the easternmost part of India.
Q18. If it is 10:00 AM in India (IST), what would be the local time at 45°E longitude?
a) 6:30 AM
b) 7:30 AM
c) 8:30 AM
d) 9:30 AM
Show Answer
Correct Answer: b) 7:30 AM
Explanation: The 45°E longitude is 37.5° west of the Indian Standard Time Meridian (82.5°E). Since each degree of longitude corresponds to 4 minutes of time, the local time at 45°E longitude would be 2 hours and 30 minutes behind IST, making it 7:30 AM.
Q19. When it is 12:00 PM (noon) in India (IST), what time is it in Los Angeles (PST)?
a) 10:30 PM (previous day)
b) 11:30 PM (previous day)
c) 12:30 AM
d) 1:30 AM
Show Answer
Correct Answer: b) 11:30 PM (previous day)
Explanation: Los Angeles (PST) is 13.5 hours behind India (IST), so when it is 12:00 PM in India, it is 11:30 PM the previous day in Los Angeles.
Q20. Which of the following countries does not have a time difference with India (IST)?
a) Afghanistan
b) Iran
c) Myanmar
d) Sri Lanka
Show Answer
Correct Answer: d) Sri Lanka
Explanation: Sri Lanka shares the same time zone as India, observing Indian Standard Time (IST).