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The location of the U.S. state of Indiana at the boundary of the Eastern and Central time zones has led to the state being split between the two time zones. The official dividing line has moved progressively west from its original location on the Indiana–Ohio border, to a position dividing Indiana down the middle, and finally to its current location along much of the Indiana–Illinois border. Being on the western frontier of the Eastern time zone resulted in opposition from many in the state to observing daylight saving time for decades. The 2005 decision by the Indiana General Assembly to implement daylight saving time remains controversial. == Time zone division of Indiana == Indiana observes Eastern Time, except for twelve of its ninety-two counties, which observe Central Time.〔http://www.in.gov/portal/files/TimeZones.pdf Retrieved 2011-01-01〕 Six of these counties are in northwestern Indiana, near Chicago (which observes Central Time), and six are in southwestern Indiana, near Evansville, where the metro area includes portions of southeastern Illinois and western Kentucky, which also observe Central Time. The twelve counties are: *Northwestern Indiana (Gary Metro Area): * *Jasper * *Lake * *LaPorte * *Newton * *Porter * *Starke *Southwestern Indiana (Evansville Metro Area): * *Gibson * *Perry * *Posey * *Spencer * *Vanderburgh * *Warrick Since April 2, 2006, all counties in Indiana observe daylight saving time. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Time in Indiana」の詳細全文を読む スポンサード リンク
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