What is GMT (time) and how does it compare to mountain and EST? Hours difference?
923786
Greenwich Mean Time (GMT) is now known as Universal Coordinated Time, the international atomic time standard.\n\nUniversal Coordinated Time (UTC) is four hour ahead of Eastern Daylight Time (EDT), five hours ahead of Eastern Standard Time (EST), six hour ahead of Mountain Daylight Time (MDT), and seven hours ahead of Mountain Standard Time (MST),
320604
Time difference is 24 hours? That would be on the date line.\n\nThe date line runs from the north pole down through the Pacific ocean and to the south pole... the only land under this line is Antarctica and the Arctic Ice sheet.\n\nIf you were to stand on the eastern side of the date line and look to the east then you will actually be seeing yesterday, if you were to step over it and look west then you will be seeing tomorrow.\n\nEDIT: People who think there is not one... please think before answering a question.\nConsider that the date line exists at +12 and -12 hours GMT at the same time... the difference between +12 and -12 is a total of 24 hours.\n\nQuote from Wikipedia:\n"If one crosses the date line at precisely midnight, going westward, one skips an entire day; while going eastward, one repeats the entire day."
810938
6 pm. time zones go from left to right, so a time zone to the left of another is behind the right one. For extra proof, notice that new years happens in Europe before California...see?\nJust a note...There are 4 timezones in the us. So there is(from left to right) pacific, then mountain, then central,  then Eastern seaboard. Make sure you are talking about central and not mountain.
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
574340
give this code a shot. I am not sure if I have the comparison correct based on your timezone so you will want to check the 2 (2AM GMT is 8PM central I believe?). Basically, since the new Date(); function in javascript returns the users local time you can use the getUTCHours to return GMT time in hours. If that is 2 (8PM central) you change the source of the blank image to be your 'On Air' image.\n\nHope this helps\n\n<script>\nvar now = new Date();\nif (now.getUTCHours() == 2) {\nonAir.src = 'on_air.gif';\n}\n</script>\n\n<img src="blank.gif" name="onAir">
651194
Not sure, possibly 6 pm.  I'd have to check.  I believe Mexico is in the "Mountain" time zone.  if Ohio is Eastern then there are 2 hours difference.  That would change my answer to 5 pm.
347847
For the Eastern US Time Zone, Switzerland is 6:00 hours ahead
807462
GMT +2 , I LIVE IN SYRIA\nNOW IT'S 1:05 PM \nI WOKE UP A WHILE AGO\nOK HAVE A GOOD SLEEP!!!\nGOD BLESS!
162199
"Greenwich, England has been the home of Greenwich Mean Time (GMT) since 1884.  GMT is sometimes called Greenwich Meridian Time because it is measured from the Greenwich Meridian Line at the Royal Observatory  in Greenwich.  It is the place from where all time zones are measured. \nThe Greenwich Meridian (Prime Meridian or Longitude Zero degrees) marks the starting point of every time zone in the World.  GMT is Greenwich Mean (or Meridian) Time is the mean (average) time that the earth takes to rotate from noon-to-noon.  \n\nGMT is World Time and the basis of every world time zone which sets the time of day and is at the centre of the time zone map.  GMT sets current time or official time around the globe.  Most time changes are measured by GMT.  Although GMT has been replaced by atomic time (UTC) it is still widely regarded as the correct time for every international time zone."
971947
Greenwich Mean Time (GMT) was officially replaced by Coordinated Universal Time (UTC), a high-precision atomic time standard, on January 1, 1972.\n\nA great many people including the British Broadcasting Corporation (BBC) still use the term GMT for Coordinated Universal Time.\n\nPS - The acronym UTC is a most peculiar international compromise between the English acronym CUT for Coordinated Universal Time and the French acronym TUC for le temps universel coordonné.
385488
Ohio is eastern time.. Montana is mountain time.. so 1:00 in Ohio is 3:00 in Montana.. \nfor future reference.. \n1:00 in the eastern time zone [New York]\n2:00 in the central time zone [Chicago]\n3:00 in the mountain time zone[Colorado]\n4:00 in the pacific time zone [California]\n6:00 in Hawaii
627224
In North America it means Pacific Daylight Time, three hours earlier than EDT and something like 7 hours earlier than GMT. PDT might refer to other time zones in other parts of the world.
909137
The United Kingdom (AKA Great Britain, England etc.) is at exactly GMT 0. In other words, as Arizona is at GMT-7 you simply add on the hours you need. (However if it is summertime you add on 8 hours) \nSo 10:00 becomes 17:00 (05:00 PM)
913486
Actually a good many countries around the world use the 24 hour clock system. Then there isn't a need to say AM or PM, you know whether its day or night. Also the military begins attacks, movements and such on Greenwich mean time, its a town in Britain. And its used so everyone that aware of an operation knows what time it begins regardless of what part of the world they are in.
796391
east coast (3 hrs ahead of pacific coast, 2 hrs ahead of mountain time, 1 hr ahead of central)
538356
Hong Kong is 7 hours ahead of UK and 12 hours ahead of New York now(13 hours ahead in the winter)  If you require additional information on the time zone, try the attached link!
545136
8 PM tomorrow.  http://www.timeanddate.com/worldclock/ will help you with such things.