When did Time Zones happen and why were they created? At what point did people formalise the fact that the earth is round and that it was noon in different places at different times? Watch this short and simple animated documentary to find out.

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Sources:

The Times They Are A-Changing: The Influence of Railroad Technology on the Adoption of Standard Time Zones in 1883 by Nathaniel Allen

‘Greenwich Observatory Time for the Public Benefit’: Standard Time and Victorian Networks of Regulation by David Rooney and James Nye

The Adoption of Standard Time by Ian R. Bartky

When Did Time Zones Become a Thing? (Short Animated Documentary)