how many time zones are in the usa?
954559
6time zones.they are:-\n1>Hawaii\n2>Alaska\n3>western or west coast\n4>mountain\n5>central\n6>eastern or east coast
343833
ET ~ East Coast Time(USA) \nEastern Standard Time (EST) = GMT-5. \nEastern Daylight Time (EDT) = GMT-4.\n(UK uses GMT in winter)
180044
http://www.worldtimezone.com/
189421
central timezone, coordinated universal time: -6 hours.
906613
Pacific Standard Time. It is the time zone of the west cost of the USA.
511612
i live in the usa, florida to be exact. i am in school now and the clock says its 8:48.
10154
Each country has several time zones.  Look up:\n\n\nhttp://www.timeanddate.com/
1035598
you mean 7 hours earlier?\nthat's the mountain time zone of the US, mexico, and canada, i believe.
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.
629015
Its not that the times are different in different countries, it has to do with time zones. There are 16 (I think) different time zones around the world, so that no matter where you are in the world, the time will be about the same to where the sun is.\nTo learn more try the link
932563
This condition prevailed until 1884, when a system of standard time was adopted by the International Meridian Conference. Earth's surface was divided into 24 zones. The standard time of each zone is the mean astronomical time of one of 24 meridians, 15 degrees apart, beginning at the Greenwich, England, meridian and extending east and west around the globe to the International Date Line. (This system was actually put into use a year earlier by the railroad companies of the U.S. and Canada, who, until then, had to contend with some 100 conflicting local sun times observed in terminals across the land.)
695236
Theoretical there should be 24 as there is 24 hours in a day and each time zone is 1 hour long. But there are countries that have their time zones set at half hourly intervals, such as India and Australia to name two. In actual fact there is 27 time zones in the world counting these half hourly ones.
21187
3:46 EST\n2:46 CST\n1:46 MST\n12:46 PST\n11:46 AKST\n10:46 HST
1009930
Of course people are here all the time... people from all over the world are on here, therefore different people are on at completely different times, due to time zones.
383436
Since there are 24 hours in a day, I would say that they are the different time zones across the world!
69368
5:00 P.M. As you move east your time gets later, and as you move west your time gets earlier.  There is a time zone for roughly every 15 degrees of longitude.\nThus it would be 4:00 P.M. Central, and 2:00 P.M. Pacific.
247483
my understanding is that this is a universal ENGLISH yahoo answers, you will find more than just Americans on here, just change the time of day you are on and you will notice the difference.