the world is divided into how many time zones?
535959
The world is divided into 24 time zones.
975517
Every time zone is 1 hour apart\nbecause the earth is round
259862
If its 15:34 in brazil the whole worlds time should be ending with rather :34 or :04.  It's all based on Greenwich mean time (GMT) Which is the time in a place in england.  All time zones are based around this time.  For example central america is 5 hours behind GMT so if it is 5:34 in england it is 12:34am or 0:34 in Central America.  Most of the time zones are in one hour increments however there are some that are a half hour difference.\nBTW there is no such thing as 7:84 or 13:64 in any country.
1174090
Australia.\n12:30 A.M and 4:30 A.M!
828227
same amount of nations in the world and 7 continents
22487
Hi Jerry, for me the best solution is http://www.timeanddate.com/worldclock/\nand you can even set it up for what ever clocks around the world you want. { :-)
897781
GMT 0:00 is the first second of the day.\nAll countries times are eith + or - so many hours GMT.
977009
http://www.timeanddate.com/worldclock/city.html?n=125
807189
Looking at http://www.worldtimezone.com/index12.php, it looks like it should be 4:00 pm.
585641
Different timezone most likely
69953
World: 6,491,684,537\nU.S.: 297,915,703\nAt 05:34 GMT (EST+5) Jan 16, 2006
18320
There is only one time-zone in China because the government there regulates it to be that way.  Time-zones are largely a convention, and given the use of UTC time (Universal Coordinated Time / Greenwich Mean Time), time-zones are not entirely necessary.  They are predominantly kept because of familiarity and historical convention.  That said, in China it is easier for the nation to function administratively with only one time-zone, so they have chosen that.  In the United States, the government chose to have time-zones for the people over administrative reasons...although some regions of the country (such as parts of Indiana and Arizona) have selected rules that do not follow the national norm (i.e. they don't use Daylight Savings Time).
667841
It is based on the rotation on the earth. Explaining it is too much for a yahoo answer, so the following wikipedia articles will explain this. \n\nThe second wikipedia article explains the 'french' decimal time, in which units of time are divided into slots of 10 each. This is also a lenghtly but comprehensive answer.
549074
A meridian is an arbitrary line, it is straight and goes through anything in it's path.  Can you envision a world where time zones did that.  It is bad enough that a country can have multiple time zones but what about states.  Half of the state on one time and the other half on another time setting.  Now let's get really serious.  How about a city.  can you imagine having to cross a time zone to go to work or to go to the market.  City agencies would be snarled all the time.  And we could be as silly as having you home split with two clocks on the same wall displaying different times and both being correct.\n\nThe time zones are established to be a bit more user friendly than that.\n\nI hope that gives you a bit of the rational.
1066168
they understand the concept of time the same way we do, they just have diffrent time zones so they have their times diffrent then us. What i mean by that is that while its 9 here it might be 4 there (not sure if thats the exact diffrence) because of the way the earth revolves around the sun.
1049453
Just now, it is Friday, 16 June 2006 11:25:00.\nDespite China being a vast country geographically spanning several time zones the whole of China operates to a single Standard Time (GMT+8) all year round.
185180
The earth's shape and rotation make it imposible to have the same amount of light throughout the globe at any particular time, it is day on one side of the world while it's night on the opposing side. Time zoning is meant to give us a reasonably standard method to measure time OF DAY throughout the globe.