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Did Benjamin Franklin Invent Daylight Saving Time?

An anonymous reader writes "While living in Paris, Ben Franklin was struck by how many hours of daylight were being wasted to sleep during the summer months. He wrote an open letter to a Parisian journal lamenting the wasted expenditures on candlewax, and presented his back-of-the-quillpad estimates of the cost savings if the entire population arose an hour or two earlier. However, Franklin did not specifically mention moving the clocks ahead; instead, he suggested official means for enforcement (rationing the sale of candlewax to families) and encouragement (ringing church bells at sunrise). The clock-shifting technique which we know and love was credited to the New Zealander George Vernon Hudson, who proposed it in 1895. DST was first widely adopted by warring countries during World War I as a way of conserving coal needed for military purposes. This launched a debate over DST's usefulness that continues to the present day (particularly by people stumbling about in their bathrooms). Of course, Franklin is also associated with other questionable ideas, including bifocals, lightning rods, electric current flowing from the positive to negative terminal, leaking official documents to fan opposition, and an independent United States of America." New research suggests the daylight saving time change will lead to lower productivity tomorrow as the lost sleep makes workers more likely to slack (PDF).

8 of 395 comments (clear)

  1. Ah, Ben Franklin by mykepredko · · Score: 5, Informative

    One of my childhood heroes - I'm not surprised that he would have questioned the custom of keeping the same hours throughout the year as the sun rises and sets at different times.

    My favourite story about him: Thomas Jefferson would not allow Franklin to work on the Declaration of Independence because he feared Franklin would put too many jokes in it.

    myke

  2. A funny quote about daylight savings time by supersloshy · · Score: 5, Funny

    I read a quote somewhere (Google says it's of Navajo origin) that changed the way I thought about daylight savings time. It went something like this:

    "Daylight Savings Time is the equivalent of cutting off the bottom of a blanket and sewing it on to the top because your blanket is too short."

    --
    "Our country is not nearly so overrun with the bigoted as it is overrun with the broadminded." -Archbishop Fulton Sheen
  3. Re:When? by enoz · · Score: 5, Funny

    Car accidents and suicides? Last I heard the Daylight Savings haters biggest complaint was that the extra hour of sunlight would fade their curtains.

  4. Re:They stole an hour from my life! by EdIII · · Score: 5, Funny

    Don't worry... your mom should be down soon with some Hot Pockets and WoW juice and you feel right as rain. You won't even think about that DST stuff anymore.

  5. Re:When? by icebrain · · Score: 5, Insightful

    Are we going to abolish the stupidity of the concept of Daylight Savings Time? It saves no daylight.

    It is an effective way to keep the daylight hours after work, when productive things can be done, rather than before work when nothing useful can be done because you're just going to have to go to work in a short time. We're stuck with the kludgy method of flipping clocks back and forth because we, as a society, are still wedded to the stupid 8-to-5 workday and the bankers that hold everyone else by the balls with their hours.

    Full disclosure: I love DST and wish we'd stay on it all year. Light early in the morning is useless to me; I'm already at work in a windowless office by the time the sun comes up. I like having a lot of time to do things after work, and I don't get that at all in the winter--the sun's setting when I leave. If DST went on all year, I'd at least have a little light to do things first.

    --
    The meek may inherit the earth, but the strong shall take the stars.
  6. Re:When? by zippthorne · · Score: 5, Interesting

    But so would keeping "summer hours" at various businesses. 9-5 in the winter? 8-4 in the summer! See how easy that is? No need to take something that has a real, astronomical meaning, and fiddle with it completely arbitrarily for no real benefit at all.

    In fact, the greatest benefit we could get would probably be to encourage businesses to vary their working times to spread out the "rush hour" traffic. This would reduce congestion on the roads (it's not strictly linear, so even a small change could reap huge rewards), a net win for both commuters and the environment. I know that an extra half hour of real time at each end of the day spent "not commuting" would be more valuable to me than 20 "extra" hours of daylight that we got by shifting our troubles by the same amount.

    --
    Can you be Even More Awesome?!
  7. I don't really agree with Ben here. by pushing-robot · · Score: 5, Insightful

    As the summary mentions, Ben's argument was basically that "early to bed and early to rise" saved energy. Getting up with the sun and going to sleep earlier in the evening reduced the need for lamp oil. And while we use electricity instead of lamp oil, this argument is still used today.

    However, when you consider that lighting is becoming more and more efficient and most of our personal energy consumption now goes to heating and cooling, the picture changes. Since the Earth takes time to warm and cool each day, the daily temperature cycle lags behind the sun by a few hours. Getting up early in the winter just means more energy spent heating your home and office, and working late in the day during summer means high A/C bills.

    Plus, most people want some daylight time outside the typical 8-5 work window. There's no reason to line up the work day with daylight hours; these days, most people are cooped up in office buildings and don't really care whether it's light or dark out. And commuting during sunrise or sunset is dangerous, so that's another good reason to offset the workday from the sun cycle.

    Finally, studies have shown that a period of bright light, preferably sunlight, is important for our health during the winter months. So yet again it makes no sense to align the workday with the daylight cycle, since commuters at northern latitudes only see a bit of dawn and dusk during their commute and are stuck indoors during the bright part of the day.

    While it may be a bit extreme, I think the ideal solution is to start the workday a couple hours past sunrise in the winter and a couple hours before sunrise in the summer. You'll be active during the warmest hours of winter and cooler hours in summer, you'll have free time during daylight hours year round, you'll commute to work in bright sunlight during the winter, and you'll avoid staring into the sun while commuting most of the year. Of course, nobody would want to a several-hour time change, so it would be better to spread it out: Lose a minute every night for half the year, then gain a minute each night for the other half. In addition, there could also be a couple jumps during the year to help avoid commuting at dawn/dusk. Getting people to accept waking up before dawn during summer and having sunset in the middle of the afternoon during winter might still take some work, but I think it would be safer, healthier, and more efficient for everyone.

    --
    How can I believe you when you tell me what I don't want to hear?
  8. Re:Why not get rid of the 9-5 and operate 24/7? by TheLink · · Score: 5, Insightful

    Huh? The only reason to work longer hours is if the country is not producing enough to feed everyone. But is that true?

    If the country is producing enough to feed everyone and you have too few jobs and too many workers why not:
    a) work shorter hours?
    b) work the same hours, but give everyone a basic income so that the jobless don't need jobs to survive?

    If the country is not producing enough to feed everyone, then it's screwed in the long run. You can hide it by going into debt or other tricks, but the real solution is to figure out a way to increase productivity.

    People with no hope of finding jobs stealing stuff from me does not increase productivity.

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