History of time in the United States - Wikipedia
https://en.wikipedia.org/wiki/History_of_time_in_the_United_States
The history of standard time in the United States began November 18, 1883, when United States and Canadian railroads instituted standard time in time zones.Before then, time of day was a local matter, and most cities and towns used some form of local solar time, maintained by some well-known clock (for example, on a church steeple or in a jeweler's window).
DA: 35 PA: 74 MOZ Rank: 83