Your home town is located at a place which receives the slanting rays of the sun. How is the temperature of your home town different from your boarding school, located at a place that receives the vertical rays of the Sun?

Find out the name of the country which has the maximum number of time zones in the world. What is reason behind a country having many time zones and others like India have just one time zone.

When you were waiting to welcome New Year in India on December 31, some countries of the world like Australia, New Zealand and Japan have already welcomed New Year. What is the reason for this?

Look at the map of the Time Zones (Fig. 2.7) and answer the following questions:

1. What is the Longitudinal degree of IST?
2. If it is 2 a.m. IST, what will be the Time at Tokyo, London, San Francisco?
3. Name the place which is diametrically opposite of India.
4. Is the Indian Standard Time ahead of San Francisco Time? Give reasons for your answer.