Proof Daylight Saving Time Is Dumb, Dangerous, And Costly

By Ben Steverman
Bloomberg

If you hate daylight saving time and all 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 our 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 non-existent effects on energy use. After Indiana finally implemented daylight saving, something that didn’t happen until 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 the time changes occur. Clocks in the U.S. will spring forward this year on Sunday, March 12. 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.

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