Losing More than Just an Hour: Daylight Saving Time on Sleep and Performance

As we rolled our clocks forward this weekend, we embraced the daylight saving time (DST) transition, a biannual ritual that many of us follow without much thought about its broader implications. This year, on March 11, 2024, we lost an hour from our sleep schedules, an adjustment that goes beyond just changing the time on our clocks. This blog post delves into how this seemingly minor shift significantly impacts our sleep patterns and work performance, questioning the relevance of DST in our modern world.

Daylight saving time, a concept introduced to save energy and make better use of daylight during the evenings, has become a topic of controversy and debate. Interestingly, most countries around the globe do not observe DST. A study highlighted by Pew Research Center notes that fewer than 40% of the countries worldwide implement this time change, leading to a discussion about its necessity and efficiency .

The effects of DST on human health and productivity are not to be underestimated. At AMMON Staffing we see it every year. Losing one hour of sleep might sound trivial, but it can disrupt our internal clocks or circadian rhythms, leading to sleep deprivation and a host of related issues. Research shows that the sudden change in time can result in increased sleepiness, concentration difficulties, and a higher likelihood of accidents both on the road and in the workplace. The transition into DST has been associated with a rise in heart attacks, strokes, and even brief spikes in suicide rates, underlining the potential health risks of this annual adjustment.

At the heart of the DST debate in the United States is the discussion around the “Sunshine Protection Act,” a legislative effort led by Republican Florida U.S. Sen. Marco Rubio (Read More). This law aims to implement year-round daylight saving time, contingent upon Congressional approval. Louisiana is one of the states considering permanent DST, a move that would eliminate the need for clock changes but also raise questions about the long-term effects on people’s health and daily routines .

Proponents of permanent DST argue that it would lead to more afternoon daylight, potentially boosting retail sales, reducing crime, and promoting outdoor activities. However, critics caution against the downsides, such as darker mornings in winter that could affect students and early-morning workers. The debate underscores a broader question: is the disruption of our biological clocks worth the perceived benefits of daylight saving time?

In the workplace, the impact of DST is particularly noticeable. Studies have shown that the Monday following the spring forward transition often sees a drop in productivity, as employees struggle to adjust to the lost hour of sleep. This phenomenon, sometimes referred to as “cyberloafing,” involves workers spending more time on non-work-related tasks as they feel more tired and less focused. The cumulative effect of this lost productivity can have significant implications for businesses, highlighting the need for employers to recognize and address the potential fallout from DST changes.

As we navigate the aftermath of the DST transition, it’s crucial to consider its broader implications. While the idea of more daylight in the evenings is appealing, we must weigh this against the health and productivity costs. With an increasing number of countries and states questioning the value of daylight saving time, perhaps it’s time to reevaluate this century-old practice. Is it still relevant in our modern, globally connected world, or is it an outdated concept that needs rethinking?

The DST debate continues to evolve, and as we adjust to the time change this spring, we should remain mindful of its impact on our lives. Whether it’s the extra cup of coffee we need to stay awake or the grogginess we feel in the morning, the effects of daylight saving time are real and significant. As discussions about permanent DST and the future of timekeeping practices unfold, it’s important to consider what we’re gaining and what we’re losing in the quest to save daylight.

Daylight Saving Time. Do we really need it?

Daylight Saving Time: Historical Context and Global Perspectives

The concept of daylight saving time was first proposed by George Vernon Hudson in 1895, with the intention of making better use of daylight during the evenings. However, it wasn’t widely adopted until World War I, when countries implemented it to conserve energy. Since then, DST has evolved, with varying adoption and abandonment cycles globally.

Globally, the adoption of DST is far from uniform. As noted, most countries do not observe DST, with its popularity confined primarily to North America and Europe. This uneven adoption raises questions about the “one-size-fits-all” approach to timekeeping, especially considering the diverse geographical and cultural contexts across the globe. In countries near the equator, where daylight hours vary little throughout the year, the concept of shifting hours to capture more daylight is less relevant, leading to their decision not to observe DST.

Biological Impacts and Health Concerns

The human body’s circadian rhythm, an internal clock regulating sleep-wake cycles, is sensitive to changes in light exposure. The abrupt shift in time during DST can disrupt this natural rhythm, leading to what is commonly referred to as “social jet lag.” This mismatch between our biological clocks and social clocks can cause various health issues, including sleep disturbances, mood changes, and impaired cognitive function.

The transition into DST has been linked to a notable increase in cardiac events. A study in the New England Journal of Medicine found a significant spike in heart attacks following the spring transition. Similarly, research in the Journal of Clinical Psychiatry observed an increase in depressive episodes during this time. These findings point to the physiological stress induced by the abrupt time change, suggesting that the health implications of DST are not just about losing an hour of sleep but also about how this change disrupts our biological rhythms.

Economic and Social Consequences

The economic implications of DST are complex and multifaceted. On one hand, proponents argue that extending daylight hours into the evening benefits the retail and leisure sectors, as people are more likely to shop and engage in outdoor activities after work. On the other hand, the disruption in sleep patterns and the subsequent decrease in productivity immediately following the spring transition can have negative economic effects.

In the realm of education, the impact of DST on students, particularly those in early grades, is significant. Darker mornings can lead to difficulties in waking up and decreased alertness in the first hours of school, potentially impacting learning and academic performance.

The social consequences of DST extend to the broader societal level, influencing daily routines and lifestyle choices. For instance, increased daylight in the evenings can lead to more social gatherings and outdoor activities, fostering community engagement and well-being. However, this shift can also exacerbate feelings of time pressure and imbalance in work-life integration, as the extended daylight may lead to longer working hours and diminished personal time.

Legislative and Policy Considerations

The discussion around daylight saving time is increasingly becoming a policy issue, as evidenced by legislative efforts like the “Sunshine Protection Act.” The debate is not just about the merits of DST itself but also about the authority and decision-making process regarding timekeeping practices. The consideration of year-round DST raises questions about federalism, states’ rights, and the role of national policy in dictating time practices that affect local and individual levels.

Critically evaluating the “Sunshine Protection Act” and similar legislation involves weighing the benefits of uniformity and stability in timekeeping against the potential downsides of ignoring regional and seasonal variations in daylight. The conversation also intersects with broader societal and environmental concerns, including energy consumption, urban planning, and the psychological effects of natural light exposure.

Looking Forward: Alternatives and Innovations

As we reassess the relevance of DST in today’s world, alternatives and innovations in timekeeping practices emerge. For example, some advocates propose abolishing DST altogether, opting for a standard time year-round that would avoid the biannual disruptions. Others suggest a more nuanced approach, adjusting time zones or creating new systems of timekeeping that better align with human biological rhythms and local environmental conditions.

The advancement of technology and flexible working arrangements, accelerated by the global shift towards remote work due to the COVID-19 pandemic, further complicates the DST debate. With more people working from home and having flexible hours, the traditional arguments for and against DST—centering on commuting and energy consumption—may need reevaluation.


In contemplating the future of daylight saving time, we must balance tradition and innovation, considering both the historical roots and contemporary implications of this timekeeping practice. The ongoing debate over DST encompasses a wide range of issues, from health and productivity to education, economy, and policy. As we navigate the challenges and opportunities presented by DST, a holistic approach that considers the diverse needs and perspectives of individuals and communities worldwide is crucial.

In conclusion, the journey through daylight saving time is not just about adjusting our clocks but also about understanding the broader implications of this practice on our lives and society. As we debate the merits and drawbacks of DST, it’s imperative to consider the evidence, listen to various stakeholders, and strive for solutions that enhance our collective well-being and adapt to the changing times.