Standardized time zones were first adopted by

Question

Quizplus · Accepted Answer

Standardized time zones were first adopted by railroad corporations in the late 19th century to help them create more efficient schedules and avoid confusion caused by different cities observing their own local times. This eventually led to the establishment of the four main time zones in the United States. While the postal service and U.S. Army may have also used standardized time, it was primarily the railroad companies that pushed for its adoption. National meat-packing companies did not play a significant role in the development of time zones.

Standardized Time Zones Were First Adopted by