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Greenwich Mean Time

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Q: By which time zone are all time zones set?
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Do Europe and antarctica extend into the tropic time zones?

All time zones make their way through the 'topics': there is no 'tropical time zone'. Antarctica has no time zones. Research stations set their clock so as to coordinate with their support countries' time zones. There is no standard.


Why have you divided the earth into time zones?

Imagine the confusion if each state had its own time zone. Or, a country had its own time zone. Or else, the whole world had one time zone. It is 1 am in Japan. In Washington D.C, it is 1 am. Laugh out loud... so, there are 24 time zones set to not confuse anyone.


Where is the original time zone clock from?

People began to understand there were different time zones a long time ago in the early 19th century. The main one was set in London England in the UK.


If it is 415 pm in one time zone what is the time two time zones to the west?

A time zone two zones to the west would have a time of 2:15 PM. Locations to the east have later times and locations to the west have earlier times.Time ZonesThe standard time zones were set up to establish uniform regional times in the place of varying local times according to the Sun. Each time zone normally represents one hour's difference in time. They are centered in 15° increments from the Prime Meridian and have a width of 15° longitude. However, many political and commercial adjustments have been made to the actual time zone boundaries.(see related question)


How did railroads affect time zones in the United States?

There were no time zones anywhere in the world before the United States railroads set up the system. Before time zones all clocks were set to local time based on when the sun reached noon in that town. This made it impossible for the railroads to create workable train schedules throughout their entire system. Time zones made it possible to schedule trains and keep them operating on schedule.

Related questions

Do Europe and antarctica extend into the tropic time zones?

All time zones make their way through the 'topics': there is no 'tropical time zone'. Antarctica has no time zones. Research stations set their clock so as to coordinate with their support countries' time zones. There is no standard.


Why have you divided the earth into time zones?

Imagine the confusion if each state had its own time zone. Or, a country had its own time zone. Or else, the whole world had one time zone. It is 1 am in Japan. In Washington D.C, it is 1 am. Laugh out loud... so, there are 24 time zones set to not confuse anyone.


Are there any travel clocks that automatically reset for different time zones as you travel?

If you get an atomic clock it can be set to adjust for the time zone, and as a bonus will always show the correct time.


Why does Windows XP ask for time zones?

System time zones are used primarily for the behavior of time-based events, such as Daylight Savings time, which may not be observed in some time zones. A proper time zone may also be necessary for cookies from some websites; if there is too large a difference between the time the server thinks it is versus the time your computer has, the cookie will prematurely expire. Finally, a correct time zone setting is necessary to update the time from the internet. If you are in the Pacific Time Zone but your system is set to the Eastern Time zone, the clock will run three hours faster than your actual local time.


Where is the original time zone clock from?

People began to understand there were different time zones a long time ago in the early 19th century. The main one was set in London England in the UK.


How many time zones can be set with the The Uttermost Co. Time Zones 06909 Wall Clock?

The Uttermost Co. Time Zones clock can handle up to eight time zones concurrently.


If it is 415 pm in one time zone what is the time two time zones to the west?

A time zone two zones to the west would have a time of 2:15 PM. Locations to the east have later times and locations to the west have earlier times.Time ZonesThe standard time zones were set up to establish uniform regional times in the place of varying local times according to the Sun. Each time zone normally represents one hour's difference in time. They are centered in 15° increments from the Prime Meridian and have a width of 15° longitude. However, many political and commercial adjustments have been made to the actual time zone boundaries.(see related question)


How did railroads affect time zones in the United States?

There were no time zones anywhere in the world before the United States railroads set up the system. Before time zones all clocks were set to local time based on when the sun reached noon in that town. This made it impossible for the railroads to create workable train schedules throughout their entire system. Time zones made it possible to schedule trains and keep them operating on schedule.


Which large country spans four time zones but keeps all clocks set the same nationwide?

China


In what year were standard time zones set up?

1884


What happens when you travel across a time zone?

When you cross the line between two time zones you usually re-set your watch forward or back one hour from its current setting. Set your watch back if you are traveling west, and set it ahead if traveling east. If you are on a flight that will bring you across several time zones, probably the better idea is to set your watch for the current time at your destination and get some rest. Also, get up frequently to stretch and exercise your legs-- don't neglect this. In addition, if you cross the International Date Line, change to the next day if going west, and go to the day before if going east. There are some places on earth where times differ between zones by 30 minutes and not by an hour. There are also places where the time zones do not geographically follow the theoretical or originally defined time zones.


What time difference generally exists between two adjacent time zones?

A time zone is a range of 24 longitudes where a common standard time is used. The time difference between two adjacent time zones is one hour.The average difference between two adjacent time zones, counting each zone with a different name as a different zone, is 0.86 hour. If you remove cases in which two adjacent zones have different names but no time difference, the average difference is 1.18 hours. The mode (the most common difference) is 1 hour. The least difference between adjacent time zones (besides 0) is 15 minutes, between India Time and Nepal Time. The greatest difference is 3.5 hours, between Afghanistan Time and China Time.