Another problem with daylight saving time: The time change raises your risk of hitting deer on the road

Dusk is a dangerous time of day for hitting wildlife on the road, and the one-hour time change means more drivers are out while deer are at their most active and visibility is dropping.

By: Tom Langen, Clarkson University, The Conversation

Outlets: The Conversation

Published: October 27, 2025

Words: 1,097

Last Updated: 1 week ago

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By Tom Langen, Clarkson University

With the annual setting of clocks back in the fall, there is a long-running debate about the benefit of the time change, given how it disrupts humans’ circadian rhythms, causing short-term stress and fatigue.

Another risk accompanying the time change is on the roads: As more people drive at dusk during an active time of year for deer, the number of deer-vehicle accidents rises.

Deer cause over 1 …

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