[math-fun] Why are so many states in two time zones?
According to www.answers.com: ----- There are thirteen states in the USA that are divided into two time zones. Oregon and Idaho are split between the Mountain and Pacific time zones. Nebraska, Kansas, Texas, North and South Dakota are divided between Central and Mountain time zones. Florida, Michigan, Indiana, Kentucky, and Tennessee are split between Eastern and Central time zones. Also, Alaska is split between the Alaska time zone and the Hawaii-Aleutian time zone. ----- If you look at a map of it, like theone at http://www.icsanmartinoinpensilis.it/LearningObjects/The%20USA/Timezonesmap...., many states seem split between two time zones for no apparent reason. In many cases, the split causes a time zone to have either a more-easternmost or a more-westernmost piece than it probably would have had without the split. Does anyone know why so many states seem to have split time zones without apparent reason? —Dan
The reason for most, is that some significant chunk of a state is in the metropolitan areas of a city in another state in a different time zone — eg Indiana and Chicago. I think that time zones were originally the invention of railroad companies, so if you lived in western Indiana you would be more Chicago centric. On Thu, Dec 14, 2017 at 19:06 Dan Asimov <dasimov@earthlink.net> wrote:
According to www.answers.com:
----- There are thirteen states in the USA that are divided into two time zones. Oregon and Idaho are split between the Mountain and Pacific time zones. Nebraska, Kansas, Texas, North and South Dakota are divided between Central and Mountain time zones. Florida, Michigan, Indiana, Kentucky, and Tennessee are split between Eastern and Central time zones. Also, Alaska is split between the Alaska time zone and the Hawaii-Aleutian time zone. -----
If you look at a map of it, like theone at http://www.icsanmartinoinpensilis.it/LearningObjects/The%20USA/Timezonesmap.... , many states seem split between two time zones for no apparent reason. In many cases, the split causes a time zone to have either a more-easternmost or a more-westernmost piece than it probably would have had without the split.
Does anyone know why so many states seem to have split time zones without apparent reason?
—Dan
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Because intermediate timezone swell? Of course, XKCD: https://xkcd.com/1799/ <https://xkcd.com/1799/> Happy holidays!
On Dec 14, 2017, at 4:14 PM, Victor Miller <victorsmiller@gmail.com> wrote:
The reason for most, is that some significant chunk of a state is in the metropolitan areas of a city in another state in a different time zone — eg Indiana and Chicago. I think that time zones were originally the invention of railroad companies, so if you lived in western Indiana you would be more Chicago centric.
On Thu, Dec 14, 2017 at 19:06 Dan Asimov <dasimov@earthlink.net> wrote:
According to www.answers.com:
----- There are thirteen states in the USA that are divided into two time zones. Oregon and Idaho are split between the Mountain and Pacific time zones. Nebraska, Kansas, Texas, North and South Dakota are divided between Central and Mountain time zones. Florida, Michigan, Indiana, Kentucky, and Tennessee are split between Eastern and Central time zones. Also, Alaska is split between the Alaska time zone and the Hawaii-Aleutian time zone. -----
If you look at a map of it, like theone at http://www.icsanmartinoinpensilis.it/LearningObjects/The%20USA/Timezonesmap.... , many states seem split between two time zones for no apparent reason. In many cases, the split causes a time zone to have either a more-easternmost or a more-westernmost piece than it probably would have had without the split.
Does anyone know why so many states seem to have split time zones without apparent reason?
—Dan
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_______________________________________________ math-fun mailing list math-fun@mailman.xmission.com https://mailman.xmission.com/cgi-bin/mailman/listinfo/math-fun
participants (3)
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Dan Asimov -
Marc LeBrun -
Victor Miller