Time change: solar time returns. The dates | DietDF

Rome, 22 October 2021 – We are almost there, the change of the hour – which will bring us back to the solar – is at the gates. The autumn appointment, now fixed, will be on the night between Saturday 30 and Sunday 31 October 2021 , at 3.00. Technically what do you need to remember to do? Simply to move the hands back one hour in order to earn us, with the advent of the darkest months of the year, a good sixty precious minutes of light in the morning. Reach usually solar time will accompany us for all the cold months, until March 2022 when, in the night between Saturday 26 March and Sunday 27, the daylight saving time will be restored again.

Most electronic devices are designed to adjust automatically: the analog home clock, on the other hand, cannot ignore our intervention. The general impression is that the days will be shorter and that the darkness will “eat” a good part of the afternoons. According to various estimates, only in 2020, in Italy the benefits of summer time led to savings of 400 million kWh and a significant reduction in CO2 emissions into the atmosphere.

Solar time: a dip in history

We could qualify the solar time as “that normal ” since it represents the time marked by your reference time zone. On the contrary, daylight saving time could be considered a kind of “trick” used in spring and summer. Historically who has had this realizing? There are several legends about the origin of this invention, one of which involves Benjamin Franklin . In reality, the scientist and politician – with a lot of humor – when in 1784 he was in Paris as an ambassador, wrote a letter to the newspaper Journal de Paris, in which, making fun of the alleged early morning habits of French citizens, he calculated how many candles would be could have been saved if the Parisians had used all the sunlight available during the day, instead of getting up late. It can almost be said that realizing has come from a satirical prod . In fact, there are those who took the idea very seriously: in 1895, the New Zealand entomologist George Vernon Hudson imply of some distance advancing the clocks by two hours to exploit solar radiation during the beautiful season. An intuition that was later taken up by the British manufacturer William Willett , this time finding the support of the House of Commons of the United Kingdom, who in 1916 approved the British Summer Time, that is the shift forward of the time during the summer, which soon spread to other states as well.

Uncertain future

Solar time has been the protagonist in the last years of heated debates. The advisability of renouncing it has been discussed several times; between July and August 2018, the proposal of abolition was put forward, advocated above all by the Northern European countries, headed by Poland and Finland . In Scandinavian countries, where the days are longer, there is no significant gain of light; on the contrary, in southern European states, daylight saving time actually lengthens the days. In the discussion that followed the European Commission, no compromise was reached that would satisfy all the member countries; the pandemic subsequently froze all decisions. The most popular scenario is that you opt for a block decision. Italy has not yet taken a definitive position, unlike France, which has chosen to ban the time change. In the meantime, therefore, it is good to remember the usual appointment with the October gleaming hands.

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