How to Tell Everyone When It's the New Midnight

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On November 18th, 1883, we went on standard time. Allen has already done a lot of legwork, like figuring out all the time changes. The big moment arrives at noon. How do you tell everyone when it's the new noon? After the break, the day of two noons. Here was Allen's plan, or part of his plan anyway.

(Note: this episode originally ran in 2019.)

In the 1800s, catching your train on time was no easy feat. Every town had its own "local time," based on the position of the sun in the sky. There were 23 local times in Indiana. 38 in Michigan. Sometimes the time changed every few minutes.

This created tons of confusion, and a few train crashes. But eventually, a high school principal, a scientist, and a railroad bureaucrat did something about it. They introduced time zones in the United States. It took some doing--they had to convince all the major cities to go along with it, get over some objections that the railroads were stepping on "God's time," and figure out how to tell everyone what time it was. But they made it happen, beginning on one day in 1883, and it stuck. It's a story about how railroads created, in all kinds of ways, the world we live in today.

This episode was originally produced by Alexi Horowitz-Ghazi and edited by Jacob Goldstein. Jess Jiang is Planet Money's Acting Executive Producer.

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