What was developed in 1883 by the railroad companies to standardize the transportation of goods across the nation?

Railroad timetables in major cities listed dozens of different arrival and departure times for the same train, each linked to a different local time zone. Efficient rail transportation demanded a more uniform time-keeping system.

i heard they are taking it off i hope this isn't true but otherwise if it doesn't get taken off it will probably be in early december or early january of 2018-2019