How many time zones are there

Question

How many time zones are there

Answer 1

i would say 24 standard time zones. 1 for every hour of the day

Answer 2

24

here is a link with  more about them:

http://en.wikipedia.org/wiki/Time_zone

Answer 3

In 1878, Canadian Sir Sanford Fleming proposed the system of worldwide time zones that we use today. He recommended that the world be divided into twenty-four time zones, each spaced 15 degrees of longitude apart. Since the earth rotates once every 24 hours and there are 360 degrees of longitude, each hour the earth rotates one-twenty-fourth of a circle or 15 degrees of longitude. Sir Fleming's time zones were heralded as a brilliant solution to a chaotic problem worldwide.

Answer 4

I would say 24, but there are some countries (and in some cases, parts of countries) that have a 'half time zone', e.g. when it's 8a.m. in one place, 9a.m. in another (and so on), it can be 9.30a.m. in a place such as Delhi, so I can't actually be sure of the exact total.