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Because before that everyone used some local means of time measurement and it was not uniform.

Local solar time.

The Railroads needed a more regular system for scheduling trains.

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13y ago
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6mo ago

The US was divided into four time zones in the 19th century to standardize and coordinate railroad schedules. Before this, each city and town had its own local time, which made it difficult for trains to run on a consistent schedule. The establishment of time zones helped streamline and improve efficiency in the transportation industry.

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Q: Why was the US divided into four time zones in the 19th century?
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