When you cross the international date line then what happens?
When you cross it the day changes to yesterday.
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How many time zones are there?
In 1884, countries agreed to an international time system with 24 zones.
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When was it that the same country often had different time zones?
It was until the 19th Century, towns in the same country often had different times.
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All the states of America have the same time zone. Is it true or false?
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How many time zones are there in Russia?
Russia has nine time zones.
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How can you travel from today into yesterday?
On the other side of the world is the International Date Line. When you cross this line, you don't just change hours, you change days. So you can travel back.
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25
It's 12 pm in Greenwich. What's the time in Thailand? GMT +7
It's 7 pm / It's 19:00 / It's seven o'clock in the evening.
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Why didn't we have the time zones before?
It didn't matter because people didn't travel very much and they travelled very slowly.
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How many time zones are there in the USA?
Five time zones excluding Hawaii.
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Where is the Prime Meridian?
Prime Meridian is at Greenwich in London.
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It's 12 noon in Greenwich. What time is it in Japan? GMT +9
It's nine o'clock in the evening / 9 pm / 21:00
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It's 12 at noon in Greenwich. What time is it in New York? GMT -5