Ideally, you would have the same offset from Coordinated Universal Time (UTC) as the nearest multiple of 15° of longitude to you. To simplify: divide your longitude by 15°, then round the quotient to the nearest whole number. The result is the number of hours from UTC your location would be if the system were perfect, with east longitudes being ahead of UTC and west longitudes being behind UTC.
There are 3 time zones
Check out the related interactive link to find time zones around the world. http://www.worldtimezone.com/
Click on the Link in the Related Link Section.
THEY'RE based on the location
THERE ARE TWO TIME ZONES IN BETWEEN BOSTON AND LOS ANGELOS.
There are 6 time zones between Chicago (CDT) and Berlin (CET).
Ask an alien!
earth's rotation
It has do do with the rotation of the earth around the sun.The suns position at that point of time on the zone. For instance midday when the sun is midway between sunrise and sunset would be different in another location,hence altered time zones to meet the differences.
There is a 6 hour time difference. It is actually 7 time zones different, as some time zones are not 1 hour.
Australia spans three time zones. It is anywhere from 7-9 hours ahead of Scotland, depending on the location in Australia.
There are 15 time zones between Colorado and China.