hands forward an hour in the night between Saturday and Sunday. Sunday, March 29 at 2 clicks because the DST, which will remain in force for seven months, until the night between 24 and 25 October.
Termina così il periodo di ora solare, che accompagna i cinque mesi invernali, con l'obiettivo di recuperare un'ora di luce in più a fine giornata. La mattina di domenica, dormiremo un'ora di meno. Ma il sonno perso sarà recuperato in fretta.
C'è intanto chi si interroga sui vantaggi (o meno) dell'introduzione di questa consuetudine. Non farebbe risparmiare, secondo uno studio dell'Università della California, che ha analizzato sette milioni di abitazioni nello Stato dell'Indiana, concludendo che l'ora legale ha aumentato i consumi annuali delle utenze domestiche tra l'1% e il 4%, per una spesa aggiuntiva di 8,6 milioni di dollari l'anno. In Italia, invece, lo scorso anno, secondo i dati di Terna, nei sette mesi di ora legale sono stati risparmiati 646 milioni di chilowattora di elettricità, pari a circa 99 milioni di euro.
In Italia l'ora legale è stata adottata per la prima volta nel 1916, dal 3 giugno al 30 settembre. Negli anni successivi l'inizio fu anticipato a marzo. La norma rimase in vigore fino al 1920 e poi venne abbandonata. Dopo 20 anni, però, si decise di farvi di nuovo ricorso: Mussolini decretò che era necessaria e la riammise. L'ora legale tornò così in auge nel 1940 e negli anni del periodo bellico, e vi rimase fino al 1948, anno in cui venne nuovamente abolita. L'adozione definitiva risale al 1966, durante the years of energy crisis. For the first 13 years it was established that summer time should remain in force from 22 May to 24 September. From 1981 to 1995, however, it was decided to extend the last Sunday in March to last September. The final arrangements came into force in 1996 when it was decided to further extend the duration from the last Sunday in March to last October.
For almost all industrialized countries, precisely because of the possible savings, which adopted daylight saving time, according to a criterion for setting the dates of beginning and end coincide as much as possible, especially not to complicate the air carriers' schedules, also in view of the seasons and the needs of States that are in different hemispheres. So the last week of March in Europe (including Russia) marks the beginning of the summer-time arrangements, in the Southern Hemisphere celebrates the end. But there is also someone who, like Japan, does not adhere: to put a spoke in the wheel (as in the past in France) were farmers, especially as it is in the early hours of the morning that the work is concentrated in fields and then I need more light. The hands do not move too much of the rest of Asia as in Africa. Some uncertainty, finally, for the clock to those wishing to visit Antarctica: here the summer time - and therefore solar - change depending on which flag is hoisted on the basis were imposed for scientific reasons (but not only) on the immense slab of ice.
For almost all industrialized countries, precisely because of the possible savings, which adopted daylight saving time, according to a criterion for setting the dates of beginning and end coincide as much as possible, especially not to complicate the air carriers' schedules, also in view of the seasons and the needs of States that are in different hemispheres. So the last week of March in Europe (including Russia) marks the beginning of the summer-time arrangements, in the Southern Hemisphere celebrates the end. But there is also someone who, like Japan, does not adhere: to put a spoke in the wheel (as in the past in France) were farmers, especially as it is in the early hours of the morning that the work is concentrated in fields and then I need more light. The hands do not move too much of the rest of Asia as in Africa. Some uncertainty, finally, for the clock to those wishing to visit Antarctica: here the summer time - and therefore solar - change depending on which flag is hoisted on the basis were imposed for scientific reasons (but not only) on the immense slab of ice.
(Adapted from The Republic)
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