Study warns permanent daylight saving time could double child pedestrian crash risks

3 min read
Source: CNN
Study warns permanent daylight saving time could double child pedestrian crash risks
Photo: CNN
TL;DR

A new study published in Current Biology warns that making daylight saving time (DST) permanent would significantly increase safety risks for children commuting to school. Researchers from the University of Washington estimate that permanent DST would result in over 2 billion additional pre-sunrise school commutes nationwide annually. The study links dark morning travel to a 77% higher likelihood of pedestrian involvement in fatal crashes, with risks for children aged 5 to 18 more than doubling. While the U.S. House passed the Sunshine Protection Act in July to make DST permanent, the bill remains stalled in the Senate. Experts argue that permanent standard time is safer and better aligned with circadian rhythms, though the current twice-yearly clock change system will continue for now.

Key points

  • University of Washington researchers analyzed 16,000 schools across 14 states, representing 8.6 million children, to assess the impact of permanent DST.
  • The study estimates permanent DST would cause 356 million additional pre-sunrise commutes in those states, and over 2 billion nationwide.
  • Fatal crashes before sunrise have 77% higher odds of involving pedestrians compared to post-sunrise crashes.
  • For children aged 5 to 18, the odds of pedestrian involvement in fatal crashes are more than twice as high during dark mornings.
  • The Sunshine Protection Act, which passed the House in July, remains stalled in the Senate, meaning clocks will fall back on November 1, 2026.
  • Lower-income children are disproportionately affected as they are more likely to walk, use public transit, or arrive early for breakfast programs.

Background

The debate over permanent daylight saving time has intensified in 2026, with the U.S. House passing the Sunshine Protection Act in July. However, the Senate has stalled the bill due to concerns about winter safety and circadian health, with 19 states enacting local laws that cannot take effect without federal approval. Previous attempts at permanent DST, such as the 1974 energy crisis measure, were reversed within months due to similar safety concerns. The current twice-yearly clock change system will continue, with clocks falling back on November 1, 2026, and springing forward in March 2027.

How outlets are covering it

CNN highlights the safety risks for children, citing Dr. Leana Wen, who notes that permanent DST would shift daylight to the evening, leaving mornings darker. The Washington Post emphasizes that concerns about children’s safety should be central to the time zone debate, while Popular Science quotes University of Washington researchers arguing that the Sunshine Protection Act ignored pre-sunrise commute risks. All sources agree that permanent standard time is a safer alternative, but they differ in emphasis: CNN focuses on practical advice for families, while Popular Science and The Washington Post stress the legislative and scientific implications of the study.

Why it matters

The study underscores a critical trade-off in time policy: while permanent DST offers more evening daylight, it significantly increases the risk of pedestrian accidents for children during morning commutes. This finding could influence future legislative debates and public policy, particularly as the Sunshine Protection Act remains stalled. Parents and policymakers must weigh the benefits of evening light against the safety risks of dark mornings, especially for vulnerable populations.

What to watch

The U.S. will continue with the current twice-yearly clock change system, with clocks falling back on November 1, 2026. The Sunshine Protection Act remains stalled in the Senate, with no clear path forward. Families are advised to prepare for the time change by gradually adjusting bedtime and ensuring children wear reflective clothing during dark mornings. Future legislative debates may focus on permanent standard time as a safer alternative to permanent DST.

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