Q2 of 14 Page 62

Select the correct option :

At which direction of the IDL does a new day start immediately?

The 0° is the prime meridian. The earth rotates 360° in 24 hours, which means 15° in 1 hour. The movement from the Prime Meridian towards the East will be time ahead compared to the Western region. The earth moves from west to east, therefore from 0° to east the time will be ahead and from 0° to the west the time will be behind. Therefore the Eastern countries will be ahead in time and date.

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2

Select the correct option :

If it is Wednesday 10 a.m. at 15° E meridian, then what will be the time at IDL.

 2

Select the correct option :

According to the international convention, at which meridian does the day and date change occurs?

 2

Select the correct option :

IDL brings coordination in which of the following?

 3

Give geographical reasons

IDL is proving to be very useful in today’s times