If you hate daylight saving time and the confusion and sleep deprivation it brings, you now have solid data on your side.
A wave of new research is bolstering arguments against changing clocks twice a year.
The case for daylight saving time has been shaky for a while.
The biannual time change was originally implemented to save energy. Yet dozens of studies around the world have found that changing the clocks has either minuscule or nonexistent effects on energy use. When Indiana finally implemented daylight saving in 2006, residents actually used more electricity.
Daylight saving time isn’t just a benign relic of the 1970s energy crisis. The latest research suggests the time change can be harmful to our health and cost us money. The effects are most disruptive in the spring and fall, right after time changes. Clocks in the US will spring forward this year on Sunday. Most of Europe moves to daylight saving time two weeks later.
The suffering of the spring time change begins with the loss of an hour of sleep. That might not seem like a big deal, but researchers have found it can be dangerous to mess with sleep schedules. Car accidents, strokes, and heart attacks spike in the days after the March time change. It turns out that judges, sleep deprived by daylight saving, impose harsher sentences.
“Even mild changes to sleep patterns can affect human capital in significant ways,” Cornell University researchers Lawrence Jin and Nicolas Ziebarth wrote last year.
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