As the clocks spring forward this weekend, many will temporarily lose an hour of sleep while adjusting to daylight saving time (DST). On Sunday, March 30, 2025, at 2:00 AM, the time will shift to 3:00 AM, marking the official start of summer time in Germany and across many parts of Europe.
The change, which occurs annually on the last Sunday in March, has been a topic of debate for decades. Originally implemented during World War I to conserve energy by making better use of daylight, the practice was officially adopted in Germany in 1916. Since 1980, it has been regularly observed, and since 1996, the transition has been synchronized across the European Union.
While the intention behind DST was to save energy, studies have shown that the actual benefits are minimal. Some research indicates that the time change can disrupt the body's natural circadian rhythms, leading to sleep disturbances, fatigue, and even increased health risks. A study involving around 55,000 patients found that the time change significantly and permanently affects the body's day-night rhythm, often likened to a "mini-jetlag." This term aptly describes the symptoms many experience, including tiredness and difficulty concentrating.
Notably, the change can have a more pronounced effect on certain demographics. Children, older adults, and those with pre-existing sleep disorders are particularly sensitive to the disruption caused by the time shift. In fact, studies suggest that the risk of cardiovascular issues may slightly increase in the days following the transition.
As bedtime approaches on Saturday night, many will find themselves grappling with the prospect of losing an hour of sleep. However, there are strategies to ease the transition. Experts recommend gradually shifting sleep schedules in the days leading up to the change. For instance, on Saturday, March 29, individuals can start going to bed and having meals half an hour earlier, and then adjust again on Sunday. By doing so, they can help their bodies adapt more smoothly to the new schedule.
In addition to the personal impacts, the time change can also affect broader societal functions. Transportation schedules, work hours, and even school timings may need adjustments to accommodate the new daylight hours. Notably, the shift results in longer evenings, which many enjoy, but it also means that mornings will be darker for a time.
Despite the tradition of changing the clocks, public sentiment appears to be shifting. A 2018 survey revealed that 84 percent of EU citizens favor abolishing the biannual time change. In response to this widespread sentiment, the European Parliament voted in 2019 to end the practice. However, implementation has stalled, and as of now, the time change will remain in effect at least until the end of 2026.
As the debate continues, various mnemonics have emerged to help people remember whether to move the clocks forward or back. For example, the "spring forward, fall back" phrase is widely used to denote the seasonal changes. Other tips include the "garden furniture rule"—putting garden furniture out in spring means moving the clock forward—and the "clothing rule," which reminds us that as temperatures rise, we lose an hour.
In conclusion, as daylight saving time begins this Sunday, many will experience the typical mixed feelings of losing an hour of sleep versus enjoying longer evenings. While the health impacts and public opinion on the time change remain contentious, the tradition continues for now, with many looking for ways to adapt effectively to the shift.
