I haven’t blogged yet this month and suddenly it’s mid-March already. Tonight we set the clocks ahead one hour. This time of year brings out a predictable spate of articles about the history of Daylight Saving Time (not “Savings” Time) and partisans on both sides weigh in.
The one thing everyone seems to agree on is that they hate changing the clocks. I used to not mind it as much as I do now, but that was before it was so G-d-awful early in the year. Daylight saving time started in the USA in 1918 with the idea of saving energy. That means it is 100 years old this year. I actually remember the biennial clock ritual as a child with a little fondness. Thinking it through helped me understand clocks, timekeeping, time zones, circadian rhythms, and jet lag a little better. And somehow the stakes were lower for sleeping in.
But we don’t currently observe your grandfather’s Daylight Saving Time. The first federal standards established that DST would start on the last Sunday in April and end the last Sunday in October. But in 2007 and 2008, DST was extended by another month, into March and November. This extension was politically motivated and driven by candy and golf industry lobbying. The hoped-for energy savings have not materialized.
This is when I started to get angry about this issue. Nobody asked us: there was no popular vote on this change, and no consideration for what the time shift does to the human body clock.
Daylight Saving Time doesn’t actually save anything. It just shifts light from the morning, when it is needed to entrain the body’s internal clock, to the evening, when it contributes to insomnia. Especially when instituted so early in the year, before the equinox (before the day is even as long as the night) it puts everyone in a state of perpetual eastward-going jet lag.
The body’s clock never actually adjusts to daylight time. The spring forward clock change is associated with a 25% increase in the risk of heart attacks and an increase in traffic accidents on the Monday following the time change (Be careful out there!) And it’s in exactly the wrong direction to help sleep-deprived teens be able to get up for school. Daylight Saving Time is one of many factors that disconnect humans from the natural world.
I think we should just end this 100-year-old experiment altogether, and live on standard time all year round. But I’d settle for a return to the standards of the 1960s and early 1970s, when turning the clocks ahead really meant the coming of spring.