 How long does it take the earth to make 1 full rotation on its axis (how long does it take for it to spin around once)?


 Is it exactly the same time everywhere in the world?  Why might it cause problems in Australia if it was exactly the same time there now as it is in Ireland?


To overcome this diffi culty, the world has been divided into time zones.


This map of the world shows the different time zones the world is divided into. All places that are between the same pair of lines are at the same time.


1. Find Ireland on the above map.


a) If it’s 12:00 noon in Ireland’s time zone, then the time in the next time zone to the east is


and the time in the next time zone to the west is


b) As we travel east, each time zone is 1 hour further each time zone is 1 hour further


.


c) Why, do you think, are the lines not straight? What problems would be caused by having straight lines dividing up the time zones?


d) What problems does a country like the USA have with time zones? 212 Time . . As we travel west,


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