Thus, from that same Sunday, March 28, dawn and dusk later. But since when do we change the time? Does it affect the human body? When will the decision to set a single time arrive? These are all the keys
Time change 2021: what day of March is changed to daylight saving time
The summer schedule arrives this Sunday with the first time change of 2021. In this way, At 02:00 a.m. from Saturday to Sunday, the clocks will have to be advanced so that they mark 03:00 a.m., so the day will have “one hour less.”
Thus, as of that same Sunday, March 28, dawn and dusk later. But since when do we change the time? Does it affect the human body? When will the decision to set a single time arrive? These are all the keys
First time change in Spain
In Espaa the summer time was first adopted in 1918 for economic and political reasons, according to an article published by Doctor of Physics Pere Planesas in the Madrid Astronomical Observatory Yearbook. The decision was made due to the shortage of coal caused by the First World War and to harmonize the schedule with that of neighboring countries.
Comings and goings with the time
In the first half of the twentieth century, the official time “was applied discontinuously and with little consistency in the dates”, first as a result of the civil war of 1936-39 and then from the Second World War, but after the oil crisis of them at 70 summer time was reinstated in many European countries – Spain did so from 1974 – and since 1980 it depends on European directives, says Planesas.
Does it help to change the time?
In recent years, various experts in the field have defended the need to set a time and keep it all year long since differentiating between winter and summer time “might make sense until forty or fifty years ago but not so much now” when, as he explained to Efe Ricardo Irurzun, of Ecologists in Action, as a result of the last time change, “there is no way to verify whether or not energy is saved” since there are no estimates “in a well-studied way” in recent years in this regard.
What is proven is that the variation of hours of light that the human body receives affects its organism and “although we adapt quickly to a change of this type”, when it is forced for reasons beyond biology “there is a dysregulation of hormonal levels” that implies among other things a decrease in melatonin or “sleep hormone”, which affects both the rest and the performance of the person.
This has been confirmed to Efe by the expert in neurovascular research from the Higher Council for Scientific Research (CSIC), Ricardo Martnez, who also recalled that at people with psychotic disorders, like those who suffer from manic-depressive psychosis, “spring feels terrible to them, since their mood worsens among other reasons for having more hours to think”.
What about the European Commission’s decision to set a single schedule?
In this situation, the European Commission announced in 2019 its intention to put an end to the changes permanently, so that each European country would choose which time it preferred for the whole year, and the European Parliament chose 2021 as the time when the new regulations come into force.
But, as happened with many other provisions, the health crisis and the confinements since March 2020 altered the calendar by generating a significant delay in the debate and the regulation process and, to date, It does not seem that this year is going to be the one of goodbye to the time change: In fact, we already know that on October 31st we will recover the “60 minutes lost” by resuming winter time.
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Source site www.elmundo.es