Time

What is a time zone?

A time zone is a region that has a uniform standard time for legal, commercial, and social purposes.

Why do we have time zones?

If people everywhere set their clocks to the same time, midnight will be in the middle of the night on one side of the globe and the middle of the day on the opposite side.To avoid this problem,the earth is divided into artificial time zones.These generally follow lines of longitude. 

How are the time zones set?

There have been 24 time zones each of 15 degree longitude and an hour apart. Those to the east are ahead of Greenwhich by one hour per zone, those to the west are behind one hour each.

Which direction does the Earth rotate? (clockwise or anticlockwise)

The Earth turns counter-clockwise. The North Pole is the point in the Northern Hemisphere where the Earth's axis of rotation meets its surface.

How many time zones are there altogether?

Altogether there are 24 time zones.

What are the time zones named?

And much, much more.

Which time zone is New Zealand part of?

We are UTC + 12

Name 2 other countries which are also in our time zone.

Alaska and Russia.

What is the international date line and why do we have it?