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The railroads.
When railroading started, time was based on the position of the sun: when it is directly overhead, it's "noon." Or, on a clock, 12:00. The problem with that is, what is "noon" in Chicago is not noon in Detroit or Milwaukee. This makes it hard to calculate timetables--if it takes an hour to go from Alphaville to Bravoville, you then have to work in a time correction factor. Worse: if a train leaves Alphaville going to Bravoville at noon, and a train leaves Bravoville going to Alphaville at noon, they're going to reach their destinations at different times.
So, they came up with a "standard time" deal. They divided the nation into four sections, because it takes four hours for the sun to pass across the US. Then they decided noon would be when the sun got to the middle of each section. Now, if a train leaves Bravoville for Alphaville at noon and one leaves Alphaville for Bravoville at noon, they'll both reach their destinations at the same time.
What else can I help you with?
What time was the first sewage system in rome made?
The first sewerage system in Rome was made sometime in the 6th century BC during the reign of Terquinius Priscus. However the exact date is unknown. It is known as the Cloaca Maxima, or the "Great Sewer". It started out as a open canal going through the forum and remained that way until sometime in the 2nd century BC when it was finally covered over and became a sewer as we think of sewers today.
What is the difference between has started and has been started?
Although these two phrases are similar, they key difference is the use of "been". The "has started" statement suggests that the action or event has just recently happened whereas "has been started" creates a time lapse that a significant amount of time as passed.
What does Linear history begin with and what does it end with?
linear history starts at the big bang when time started. time started when the first piece of matter moved because time is the measure of motion. As to when it ends, there is no way a person could know that so why would you ask that.
Was the first crusade a success and why is it relevant today?
Because they are successful every time
How long has slavery existed for?
Since time immemorial. It still exists today.
What is the standard unit for time in the metric system?
The standard unit for time in the metric system is the second (s).
What time do the athletes enter the stadium today?
today and it's already started
What is the standard unit for time in the English system?
A second
Who found Pakistan Standard Time?
Sandford Fleming of Canada proposed a world-wide standard of time measurement in 1897, and by 1900 all countries adopted the system, which is used today.
What time is it in Hollywood?
Pacific Standard time. Today is October 25, 2010 at 11:35 am.
Who started time measuring system 'shak'?
kanishka
What started the system of standard time that you use?
Central Pacific Answer: The time zones were actually started with the railroads. The railroads had to be on time and before the universal time zones were initiated, many towns and states, ETC had their own time and railroads had a big problem trying to keep accurate time. The railroads came up with the idea of having 4 time zones for the united states.
What is loaded into memory every time the computer is started?
Operating system
Why the time of whole country is taken as a standard time?
Before the 1880s, every city had its own time. As transportation and communication started getting faster, that started getting more and more confusing.
What is the full form of ST?
standard time
What is the standard IRQ setting for the system time?
IRQ 1
When is the first game of the World Cup?
Today at 19:30 Indian standard time.
