Answer :
Citizens all over America reset their clocks to reflect the current time in one of four new U.S. time zones as a result of American railroad companies.
Why the time reset?
Time reset is often done due to different reasons. It may be due to error or so as to adjust a schedule.
Note that the reset was done o as to fit into the schedule of American railroad companies as they were tying to bring down or make easy and also coordinate their schedules of activities.
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