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Nella notte tra sabato 25 e domenica 26 ottobre alle 3.00 le lancette dell’orologio dovranno essere spostate indietro di un’ora.
L’idea è di William Willett, 1856–1915, imprenditore edile britannico. Nel 1907 propose di avanzare gli orologi in estate per usare meglio la luce. Calcolò un grande risparmio sui costi di illuminazione. L’ora legale fu introdotta nel 1916, poco dopo la sua morte.
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https://www.rsi.ch/s/703909
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