Why the US kept Daylight Saving Time
It’s almost time for clocks to “fall back” one hour and gain one hour of sleep.
On the first Sunday of November, at 2 a.m., clocks fall back an hour to standard time. On the second Sunday of March, at 2 a.m., clocks in most of the United States and many other countries move forward one hour and stay there for nearly eight months in what is called Daylight Saving Time.
The current March to November system that the US follows began in 2007, but the concept of “saving daylight” is much older. Daylight Saving Time has its roots in train schedules, but it was put into practice in Europe and the United States to save fuel and power during World War I, according to the US Department of Transportation’s Bureau of Transportation Statistics.
Why do we need Daylight Saving Time
Studies over the last 25 years have shown the one-hour change disrupts body rhythms tuned to Earth’s rotation, adding fuel to the debate over whether having Daylight Saving Time in any form is a good idea.
The issue is that for every argument there is a counterargument. There are studies, for example, that show we have more car accidents when people lose an extra hour of sleep. There are also studies that show robberies decline when there is an extra hour of sunlight at the end of the day. We also know that people suffer more heart attacks at the start of Daylight Saving Time. But what about our mental health? People seem to be happier when there is an extra hour of daylight.
Of course, there’s the economy, which pays for all that outdoor fun in the sun. Although saving energy was often put out as a reason to have Daylight Saving Time, the energy saved isn’t much — if anything at all.
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