Q: 82 (IAS/2007)
question_subject:
Geography
question_exam:
IAS
stats:
0,49,43,16,15,12,49
keywords:
{'same clock time': [0, 0, 1, 0], 'lisbon': [1, 0, 3, 2], 'cities': [2, 1, 1, 1], 'london': [7, 3, 11, 16], 'ethiopia': [0, 0, 2, 1], 'ghana': [1, 1, 6, 5], 'portugal': [4, 2, 7, 1], 'addis ababa': [0, 0, 1, 0], 'accra': [0, 0, 1, 1]}
Time around the world is calculated using a system of time zones. Each time zone is roughly 15 degrees of longitude wide and represents one hour of the 24-hour day. London, Lisbon, and Accra are all within or close to the Greenwich Mean Time (GMT), hence they will have the same or very close clock time at any given instant.
On the other hand, Addis Ababa is in East Africa Time, which is 3 hours ahead of GMT. This means that the clock time in Addis Ababa will not match that of London, Lisbon, and Accra. Therefore, the correct answer is option 4, Addis Ababa, which doesn`t have the same clock time as the other three cities at any given instant.