Globe: Latitudes and Longitudes — Social Science STD 6 — Question

In the figure, three places namely a, b and c are marked. Let us assume that time difference between ‘a’ ‘b’ and ‘c’ is 1 hour each. If the time at a place ‘b’ is 6 in the morning than the time at ‘a’ would be 5 in the morning and time at ‘c’ would be 7 in the morning. The time at place ‘a’ is 1 hour less because it is to the west of ‘b’ and time at ‘c’ is 1 hour more because it is to the east of ‘b’. This is due to the fact that earth rotates from west to east. As the sun rises in the east so place ‘c’ has 7am, place ‘b’ has 6am and place ‘a’ has 5am. This shows that time increases as we go towards east and it decreases as we go to west.