Online Dictionary

Wednesday, May 14, 2008

Why is the time different in other countries?

The time it takes for the Earth to make one rotation has been divided into 24 parts, known as hours. This division was made to give us a fixed unit of time.

We take as a reference point the moment when the Sun is at its highest point in the sky (when the sun is at its highest point in the sky (when the shade is at its minimum).This is called mid-day, or noon.

However, this does not happen at the same moment on each part of the Earth because the Earth is turning all the time. Therefore, when it is mid-day in London it will be seven o’clock in the morning in some parts of the United States of America. Because the USA is such a large country, there are even time difference between some of the States.


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