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Timezone changes between 1923 and 2023
(files.catbox.moe)
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Wouldn't it depend on latitude? It would be much less than 463 metres at the latitudes of Europe
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.