4 ms·
In the US you have Samuel Pierpont Langley and the Pennsylvania Railroad to thank for the modern time zone system. https://en.wikipedia.org/wiki/Standard_time
by rplst8 11y ago
In the US you have Samuel Pierpont Langley and the Pennsylvania Railroad to thank for the modern time zone system.
https://en.wikipedia.org/wiki/Standard_time#North_America https://en.wikipedia.org/wiki/Standard_time#North_America