An article from El Pais explains this:
"The clocks in Spain will move forward one hour on March 31 to mark the beginning of Daylight Saving Time. In principle, March 31 was meant to be the last time the clocks changed in the European Union, but the European Parliament has asked to delay the move until 2021.
The time change brings up another related issue that has been the subject of much debate in Spain: whether the country should remain on Central European Time (CET) or go back to Coordinated Universal Time – the successor to Greenwich Mean Time or GMT, the time zone in which it naturally falls.
Spain is in western Europe, the same as Portugal, the United Kingdom and France – that is to say, one hour behind central Europe. But in 1942, at the height of World War II, Germany changed occupied France's clocks to match Berlin time, while Britain, Portugal and Spain followed suit, albeit for different reasons.
The former meant to take advantage of the long summer evenings to increase productivity, particularly on farms, as well as to avoid confusion with its allies in Europe; Spain’s decision was seemingly a show of loyalty to Hitler and recognition that Germany was now the new master of the continent.
At the end of the war, in 1945, Britain and Portugal returned to GMT, while France and Spain remained an hour ahead. France’s decision made sense on the basis that most of its land mass falls within CET anyway, but that is not the case with Spain.
The time change is due to an EU directive, 2000/84/CE, which says that on the last weekend of October, the clocks turn back one hour, and are pushed forward again on the last weekend of March.
The idea is to adapt our bodies to natural light and save energy, but many people doubt whether any significant savings actually take place. Studies analysed by the European Commission suggest marginal savings of 0.5% to 2.5% in electricity usage.
The European Commission agreed on February 8 to do an exhaustive review on the value of continuing to change the time twice a year, and has promoted ending the practice in 2019. The time change is said to affect people’s biorhythms and can be particularly upsetting for the elderly and children. A study by the European Parliament cites medical studies that say Daylight Saving Time can disturb a person’s Circadian rhythm, the 24-hour cycle influenced by light, and impact their health.
EU member states must decide by the end of April 2020 whether they will stay in the summer or winter time. If they opt for Daylight Saving Time, the last time change will take place in March 2021, while the countries who choose to stay in winter time will change their clocks for the last time in October 2021."
Wednesday, March 27, 2019
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