Well, the result of railroads needing to standardize time tables.
Prior to that, towns had their own local time, and often it was approximate at best, based on a guy looking at a shadow and keeping time with inaccurate tools.
Imagine trying to explain to the people of Bumblefuck, IA that the train departs Nowheresville, IA at 10:30, and is a 30 minute trip, but the train arrives in Bumblefuck at 10:52 because the town clock is the one guy that winds his watch every day.
Well, the result of railroads needing to standardize time tables.
Prior to that, towns had their own local time, and often it was approximate at best, based on a guy looking at a shadow and keeping time with inaccurate tools.
Imagine trying to explain to the people of Bumblefuck, IA that the train departs Nowheresville, IA at 10:30, and is a 30 minute trip, but the train arrives in Bumblefuck at 10:52 because the town clock is the one guy that winds his watch every day.