2007-02-06 23:48:36 · 5 answers · asked by Cathy R 1 in Science & Mathematics ➔ Geography
The standard time zone system used by the entire Earth was developed by Canadian Sir Sanford Fleming, and it was implemented on January 1, 1885. It is one of the few times the whole world has agreed on and used the same thing.
The world is divided roughly into 24 time zones (with regional variations) that are each about 15 degrees longitude wide. They are one hour apart (with regional variations) except for the International Date Line, where you skip ahead a day going west and behind a day going east.
It was developed because Canada was the first large country to develop rapid transport systems (railways) and come across the problem of moving east-west and encountering the many different time zones (each city/town and their train stations set their own time by the sun). To make train schedules workable for stations spread across all of these micro-time zones, Fleming proposed and implemented standard time so train schedules would become reasonable.
2007-02-07 00:12:33 · answer #1 · answered by Anonymous · 2⤊ 0⤋
Time zones are designed to normalized the time around the globe to the approximate position of the sun in the sky. Since the earth is round only about half of it face the sun at any given time, to prevent some people having a bright and sunny Noon while other are in the darkest portion of night at noon, time zone where created. The solution if not perfect, for instance national and international borders often affect the size and shape of time zone more than the position of a certain place on the earth. Also rather than having an almost infinite number of zones each offset from the other by seconds. The offset are averaged and the zones sized to approximate an hour.
2007-02-07 08:15:46 · answer #2 · answered by Brian K² 6 · 1⤊ 0⤋
each point on earth has a different time(called the local time of that point) because the sun is directly above the point at different times. However, it becomes very confusing to keep changing times when you travel at each new point.
time zone is a region of the Earth that has adopted the same local time.all places more or less with the same time come under one time zone.
Most adjacent time zones are exactly one hour apart
The main time is GMT(GreenWich Mean Time) as the 0 degree longitude passes through greenwich. All places to the west of this longitude are behind GMT, and places to the east are ahead of it.
2007-02-07 08:19:31 · answer #3 · answered by pulverizer 2 · 0⤊ 0⤋
Time is correct to GMT (Greenwich Meantime) as you go west the time zones are behind ours, as you travel east the time is in front. It's what the time is elsewhere as opposed to GMT
2007-02-07 07:57:10 · answer #4 · answered by Angelfish 6 · 0⤊ 0⤋
everyplace on earth has a different time
2007-02-07 11:44:51 · answer #5 · answered by Anonymous · 0⤊ 0⤋