the summer begins on Sunday When time, offers many of the “longer” days. The price for the extra daylight in the evening hours but must be in the Morning in the same coin is paid – it is later light. Since 1996 will be converted in the European Union in March and October, the clocks. In Germany, there is the summer time since 1980. Originally should be saved thanks to a better utilization of daylight energy.

The EU Parliament calls for abolition of the time change in the year 2021: In this Position, the members agreed on Tuesday in Strasbourg. For the actual abolition, however, a compromise should be reached with the member States. Arguments for or against the time change, there are many. What are the votes?

ASSERTION: The summer time helps to save energy.

RATING: Largely incorrectly

FACTS: There is no evidence that the relevant degree of energy would be saved. The Federal environment Agency about the argument is this: “Although by the time change in the summer, in fact, in the evenings, less often, the light is switched on – is heated in spring and autumn, however in the morning hours and more. The cancels each other out.”

The office for technology assessment at the German Bundestag comes to the conclusion that “at best only very slight energy savings”. An evaluation of studies from different countries have revealed 2016 the potential changes in the areas of power consumption and heat of not more than one percent. A survey of around 700 companies and associations of the German energy economy have not produced a different result.

The economist, Korbinian von blanckenburg and Julian shrub have been calculated on the basis of an analysis of the data of the two network operators in Kassel and Kempten that the current System of time conversion only to a saving of 0.78 percent in the electricity consumption of private households.

ASSERTION: The time change is bad for the health, because our Inner clock device every Time in a mess.


FACTS: There is no scientific evidence that the adjustment of the biorhythm is particularly in the spring, so simple. The health insurance company DAK, for example, has found in a long-term observation, that in the first three days after the time change 25 percent more patients came with heart complaints to the hospital than the average.

time change in 2019

So the clocks changed at the weekend. Why makes us to create the actually?

The Scientific services of the Bundestag cited 2014 studies from Sweden and the United States, a slightly increased risk of heart attack assigned to the time change in the spring. An Australian study showed a correlation between time change and the suicide rate: small changes in the circadian rhythms could therefore act in the case of vulnerable people destabilizing.

In a representative Forsa survey commissioned by the DAK (2018), in turn, 72 percent of respondents said they are not able to remember that the time change would have caused any problems.

ASSERTION: Of a permanent summer time would be affected and students especially hard.

RATING: Correct

FACTS: , After conversion to the permanent summer time it would be in the Winter, in the morning, an hour later, bright. Doctors point out that people need the blue light of the solar radiation, in order to be awake. Alfred Wiater, the President of the German society for sleep research and sleep medicine (DGSM), said the German medical journal, the serotonin distribution will be stimulated by the light – “so we Wake up in the morning and kicking”.

the end of the time conversion

the “Huge problem”: researchers warn of eternal summer time


The Munich-based Chronobiology Till Roenneberg many Teens looks particularly affected. Your typical circadian rhythms-shifting their Internal clock and make it to long sleepers. Already, the school start at 8 in the morning is comparable to a start of work at 4 am in adults. “This should lead to easy times adults before our eyes, (…) how attentive you are and how well you can learn,” says Roenneberg in a Podcast of his University. The time change is exacerbating this Problem: “The discrepancy between what you want to live in the Inner clock, and what we need to live, (…) is enlarged to a hour – with all the consequences: lack of sleep, more Smoking, more under Stress, etc.”

Also the German teacher’s Association is holding a permanent switch to summer time would be irresponsible. Such a scheme would lead, according to a statement from the Association’s Chairman Heinz-Peter Meidinger, “the fact that over ten million students in Germany would take two months longer in total darkness, your morning journey to school, what would not drive least of all, the accident frequency in the height”.

ASSERTION: A permanent winter time comes the natural conditions.

RATING: Approved with restrictions

FACTS: “of Course,” it would be when the sun would reach 12 o’clock at noon, its Zenith – the equivalent of the “sun time”. For example, it is in the Winter in Görlitz, the easternmost corner of Germany. The city is located exactly on the 15. Longitude, it is therefore ideal for the calculation of the “normal time” Central European time, CET, in Germany. Already in Hamburg or Dortmund sun and time do not match but, because they are clearly Western.

time conversion

EU survey: The network of discussion about the abolition of the time conversion

The time zones are based on Coordinated universal time (UTC). The Globe, starting from the zero Meridian in Greenwich near London is divided mentally into 24 zones, each with a width of 15 degrees of longitude. From one of these zones to the next is the time an hour difference in each case.

In reality, the outlines of the time to be distorted zones of political boundaries and geographical conditions. CET is in Europe, from the Atlantic coast to the Eastern Polish border. The result is that the sun reaches in Spain, the highest level only at 13 o’clock, in Poland, been at about 11 am. The “natural” conditions, the long-lasting winter time is so only in a small part of Europe.

mad / Katja Räther / DPA