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Timezone changes between 1923 and 2023(files.catbox.moe)

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Blaze@reddthat.com
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map_enthusiasts@sopuli.xyz
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derpgon@programming.dev
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Actually every 463 meters.

40 075km is circumference of Earth. There are 24x60x60 seconds in a day.

40 075×1 000÷(24×60 ×60) =~ 463.8

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Caspase8@aussie.zone
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Wouldn’t it depend on latitude? It would be much less than 463 metres at the latitudes of Europe

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Successful_Try543@feddit.de
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Yes, distance of 1" on equator (463.8 m) × cosine of latitude longitude. This means approximately 350 m in Rome, 285,6 m in Berlin and 232 m in Helsinki. In reality a bit less, as I didn’t take the ellipsoid shape of the globe into account.

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