Have you ever travelled to a country and

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Have you ever travelled to a country and had to reset your watch? Perhaps

Have you ever travelled to a country and had to reset your watch? Perhaps you have spoken to a friend or a relative in a different part of the world and the time has been different where they are. Why is this? What do you remember about day and night? Why do we have daytime and night time? Click the button to watch a short video to remind yourselves.

The time is different depending on which part of the world you are in.

The time is different depending on which part of the world you are in. Because of this, the world is split into time zones to help people to agree when to do things, like meeting or talking on the phone. The number of hours different to London (+/ ) The Earth is a sphere divided into 360 degrees. The Earth turns 360 degrees in 24 hours. 360 divided by 24 is 15 degrees, so the Earth turns 15 degrees each hour. The Earth has 24 different times zones one for each hour in the day.

All time zones are measured from a starting point at England’s Greenwich Observatory. This

All time zones are measured from a starting point at England’s Greenwich Observatory. This point is known as the Greenwich Meridian or the Prime Meridian. Time at the Greenwich Meridian is known as Greenwich Mean Time (GMT) or Universal Time.

The Eastern time zone in the United States is known as GMT minus five

The Eastern time zone in the United States is known as GMT minus five hours. This means that when it is noon in the Eastern USA, it is 5 pm in Greenwich.

Some places have more than one time zone. Look at your Time Zone map

Some places have more than one time zone. Look at your Time Zone map and see if you can find any other places with more than one time zone. Photo courtesy of Wonder. Why 7439, nan palmero Wiki. Media Commons - granted under creative commons licence – attribution and "US-Timezones" by National. Atlas. gov. Licensed under Public Domain via Wikimedia Commons

What is the time around the world? The number of hours different to London

What is the time around the world? The number of hours different to London (+/ ) It is ____ 0’clock in _________ What time is it in __________?

What is the time around the world? How can we work out the time

What is the time around the world? How can we work out the time around the world? The number of hours different to London (+/ )

Photo courtesy of Wonder. Why 7439, nan palmero Wiki. Media Commons - granted under

Photo courtesy of Wonder. Why 7439, nan palmero Wiki. Media Commons - granted under creative commons licence – attribution and "US-Timezones" by National. Atlas. gov. Licensed under Public Domain via Wikimedia Commons

Photo courtesy of Wonder. Why 7439, nan palmero Wiki. Media Commons - granted under

Photo courtesy of Wonder. Why 7439, nan palmero Wiki. Media Commons - granted under creative commons licence – attribution and "US-Timezones" by National. Atlas. gov. Licensed under Public Domain via Wikimedia Commons

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