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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).

43 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. Being in New England... by bmo · · Score: 4, Interesting

    I always await DST with bated breath every year.

    And I rue its passing every fall

    We are so far east in the Eastern time zone, which goes all the way from Western Indiana to Maine, that we should actually be in the Atlantic time zone with the Canadian Maritime provinces.

    --
    GMO

    1. Re:Being in New England... by Yoda's+Mum · · Score: 4, Insightful

      Sounds like your area just needs to fix its timezone, or failing that happening just adjust the locale business hours to something more appropriate to the region.

    2. Re:Being in New England... by bill_mcgonigle · · Score: 3, Insightful

      just adjust the locale business hours to something more appropriate to the region.

      Not just that, Home Depot even has summer hours and winter hours. Oh, wait, that's impossible to do without government mandating it - I must be confused.

      --
      My God, it's Full of Source!
      OUTSIDE_IP=$(dig +short my.ip @outsideip.net)
    3. Re:Being in New England... by demonlapin · · Score: 3, Insightful

      Look south. The Central time zone extends to the GA/AL border, quite a bit east of you.

  3. When? by KlomDark · · Score: 4, Insightful

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

    There will be a higher percentage of car crashes tomorrow due to people being awake an hour earlier. Then in fall, there will be higher suicides when there is suddenly, with no logical explanation to your circadian cycle, dramatically less sunlight.

    This is an abomination and really has a horrible effect on me and other each year.

    It needs to go away with other anachronisms. I mortally detest it.

    1. 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.

    2. 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.
    3. 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?!
    4. Re:When? by king+neckbeard · · Score: 4, Insightful

      Adjusting work hours seasonally would be more effective, and then we wouldn't have to worry about confusion from the result of the change. Even better, the changes could be more gradual and could present a change greater than an hour if that is beneficial.

      Also, saying that we should stay on DST all year is idiotic. We should just do things an hour earlier.

      --
      This is my signature. There are many like it, but this one is mine.
    5. Re:When? by Attila+Dimedici · · Score: 3, Insightful

      It made a tiny bit of sense in the old days for cities before electric power. But it made no sense for rural areas. Now that we have this fancy thing called electricity, the entire concept is just asinine.

      Except of course, they did not do Daylight Savings Time until after the development of electric lights.

      --
      The truth is that all men having power ought to be mistrusted. James Madison
    6. Re:When? by AK+Marc · · Score: 3, Interesting

      When the President of the United States publicly defends DST as saving energy due to reduced lighting (from coal, something we have enough of and don't import), while the truth is more energy is spend under DST (mostly oil, which we mostly import), I have to wonder if DST isn't just a oil company conspiracy. Energy use is increased, as people are more likely to take an evening shopping trip under DST. And the economic stimulus of more unfunded spending is exactly what we need more of, right?

  4. They stole an hour from my life! by Anonymous Coward · · Score: 4, Funny

    This is really bad. I woke up this morning and noticed that is was noon instead of 11am like it should be. They fucking stole an hour from my life! Sure some might say I'll get it back next time we adjust the clock, but what if I don't make it to that time? It's gone, this is completely horrible.

    1. 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. Increased traffic accidents on Monday by jroysdon · · Score: 4, Insightful

    Sleep-journal.com: "Results: There was a significant increase in accidents for the Monday immediately following the spring shift to DST (t=1.92, P=0.034). There was also a significant increase in number of accidents on the Sunday of the fall shift from DST (P0.002)."

    Get rid of DST. Arizona has it right (no DST). Doesn't help that the whole world doesn't even follow the DST change at the same time.

  6. Mark my word1 by gestalt_n_pepper · · Score: 4, Funny

    This "electricity" is merely a fad and will come to nothing. Ha, and those bifocal things will cause the innocent wearer to become cross-eyed. Such dangerous radicals are not to be suffered in the King's lands!

    --
    Please do not read this sig. Thank you.
  7. 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
    1. Re:A funny quote about daylight savings time by swalve · · Score: 3, Insightful

      When the blanket's size grows and shrinks throughout the year, and the middle is attached to the side of the bed, it makes perfect sense.

  8. CGP Grey by Gideon+Wells · · Score: 3, Interesting

    C.G.P. Grey did a swell video on this subject: http://www.youtube.com/watch?v=84aWtseb2-4

    Frankly, the system as is a chaotic mess. I find myself more and more often tempted to state HH:MM p/a GMT. It just seems like something that was good in theory about two hundred years ago, but now? Confusion. There is a reason standard time for trains considered such a great advance. DST now seems like a step backwards.

    --
    by Anonymous Coward: I, for one, welcome the shift from car analogies to pizza analogies. um.. overlords?
    1. Re:CGP Grey by Jamu · · Score: 3, Informative

      No it doesn't. BST is always GMT + 1.

      --
      Who ordered that?
    2. Re:CGP Grey by Gideon+Wells · · Score: 4, Funny

      Well, to be honest the hipster in me has also considered going by the Zulu standard just to confuse even the GMT/UTC supporters.

      --
      by Anonymous Coward: I, for one, welcome the shift from car analogies to pizza analogies. um.. overlords?
  9. low standards by ILongForDarkness · · Score: 4, Insightful

    The standard for "invention" has dropped a long way hasn't it. The whole "getting up with the sunrise" idea from antiquity was the original dailylight savings time. It was only once people started working in dungeons ...er ... factories that schedules started being different from work when you can see what you're doing. You can't forget something and then remember it and replace it with a less precise system and call it an invention.

  10. You'd think slashdot readers would recognize it... by russotto · · Score: 4, Insightful

    It's pretty clear Franklin was trolling big time with that letter.

  11. Not tomorrow by Deadstick · · Score: 4, Funny

    If you think productivity will go down tomorrow, wait and see what happens on the 22nd. That's when the new Angry Birds comes out.

  12. Nope... by matt_gaia · · Score: 3, Funny

    Obviously, Ben Franklin didn't invent DST. Bobby Boucher's mother did... Ben Franklin is THE DEVIL!

  13. Do we have to actually 'abolish' it? by coldmist · · Score: 3, Informative

    No.

    My wife hates DST, so she looked into the actual law.

    Here it is: The federal US government sets the days that the DST transition happens on. It's up to the individual states to go on DST or not.

    So, you could work at a state level to just have your state not participate in it.

    That's it.

    --
    Don't steal. The government hates competition.
  14. DST Graph by pgn674 · · Score: 4, Interesting

    If you want a visual explanation of the purpose and result of daylight saving time, check out this graph: Picasa Web Albums - Paul Nickerson

    The purpose, as I understand it, is to make the sun not rise super early against the clock during the summer. The effect is that it reduces the range of sunrise times, while increasing the range of sunset times. In a way, it normalizes sunrises while amplifying sunsets.

    Oh, and while we're at it, during a non-DST period, if the time zones were evenly split and straight with no regard to human geographic borders, then at the middle of the time zone, 12:00 (noon) would be the time that astronomical noon is (when the sun is highest in the sky), varying by about 20 minutes before and after noon. If you average all the astronomical noons over the course of a year in the middle of a time zone, then astronomical noon is at precisely 12:00. During DST, astronomical noon is moved to 1:00 pm (13:00)

  15. 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?
    1. Re:I don't really agree with Ben here. by magarity · · Score: 4, Interesting

      As the summary mentions, Ben's argument was basically that "early to bed and early to rise" saved energy.

      Yes, but note that while he's saying go to bed early, he also admits to not getting home and to bed until 3AM and notes that he never sees the sun before noon. If anything, I like him more after reading that bit.

    2. Re:I don't really agree with Ben here. by BeefMcHuge · · Score: 4, Informative

      I assume your joking but just in case. Hemp and Marijuana are not the same plant. They come from the same species of plant but you cant smoke hemp to get high. It only contains minute amounts of the psychoactive drug, not enough for any physical or psychological effects. The US was a huge producer of hemp before it was outlawed. It can be used to make clothes/paper/plastic/ and just about anything else you can think of. It is still illegal in the US to grow "industrial" hemp because people and the government are to fucking stupid and scream "think of the children" every time even though it is not a drug.

  16. Re:If he did... by JoeMerchant · · Score: 3

    My respect for him just took a nosedive.

    DST is stupid. Stupid. Stupid. Stupid..

    At the latitude of Paris, or New York City, in the middle of summer when sunrise is around 4:30am, and your typical city dweller doesn't rise until 7 or 8, but the burns candles several hours into the night, it makes perfect sense.

    In Florida, it's just stupid. Kids are going to be dropped off at school before twilight starts tomorrow morning.

  17. Singapore by skribe · · Score: 4, Interesting

    Singaporeans liked the concept of Daylight Saving so much that in 1982 they moved to it permanently. Geographically they should be UTC+7 but they currently work off UTC+8.

    </ useless trivia >

    --
    Blog
    1. Re:Singapore by isorox · · Score: 3, Interesting

      Singaporeans liked the concept of Daylight Saving so much that in 1982 they moved to it permanently. Geographically they should be UTC+7 but they currently work off UTC+8.

      </ useless trivia >

      I can sort of see the justification for daylight "saving" nearer the poles, but for equatorial countries where the length of day varies by about 10 minutes it makes no sense. Pick a time and stick with it.

      There's plenty of anomalies with time zones. In December, Moscow was 2 hours ahead of Israel despite being pretty much the same longitude. Spain is 1 hour ahead of the UK despite parts of it geographically fitting into UK-1.

      Gaza has 2 spring forwards and 2 fall backs a year. At some points in the year, Israel, 1000 miles east of greece, is an hour behind.

      And now we've got a confusing situation of New York being 4 hours behind London, rather than 5. Due to travel (in the u.s this weekend, back in the uk af the end of the month) I get to have my clocks go forward twice this year, and last year I missed out on the benefit of clocks going backwards as I was somewhere out east -- Israel or India or somewhere (you know you travel too much when you can't remember what countries you've been to in a given year).

  18. Slackers will use any excuse to slack off by Taco+Cowboy · · Score: 4, Insightful

    New research suggests the daylight saving time change will lead to lower productivity tomorrow as the lost sleep makes workers more likely to slack

    Slackers will use any excuse available to slack off

    If they can't blame it on daylight saving time, they will blame it on something else

    On the other hand, those who work hard will always work hard, come what may

    --
    Muchas Gracias, Señor Edward Snowden !
    1. Re:Slackers will use any excuse to slack off by Chrisq · · Score: 4, Funny

      New research suggests the daylight saving time change will lead to lower productivity tomorrow as the lost sleep makes workers more likely to slack

      Slackers will use any excuse available to slack off

      I blame it on slashdot

  19. Re:Ben Franklin was wrong? by aXis100 · · Score: 3, Informative

    He didnt get it wrong - "Electric Current" is an arbitary definition.

    The fact that it does not match up with the most typical case - electrons - is only an inconvenience. There are other circumstances where the flow of charge matches the direction of electric current, such as with positive ions in an electrolyte, so either way you're going to have issues.

  20. 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.

    --
  21. Not good for warmer latitudes by pavon · · Score: 3, Interesting

    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,

    No you would be cooped up in an office during the warmest hours of winter and the cooler hours in summer. All your free time would be during the hottest hours of summer and the coldest hours of winter. That sounds like a good way for office buildings to save heating/cooling expenses, but would increase residential expenses, and make it less enjoyable to spend your free time outside.

    For someone in the warmer latitudes, what I would like to see is the opposite. Leave winter hours as they are, and then shift the clock an hour later in the summer. That way you spend the hottest hours in the office, it will have cooled off by the time you are getting ready for bed, and you have time in the morning when it is cooler to spend outside before going to work.

  22. Workweek Saving Day by mjjochen · · Score: 4, Funny

    Since many of us are interested in shifting clocks to allow for a more productive work day, and save lighting expenses, I propose a new twist to this system: the Workweek Saving Day. It is a very simple concept, really. Each Saturday night, instead of it becoming Sunday at the stroke of midnight, it becomes Monday. How awesome is that?! This way, we can all provide one more productive day of work to our beloved employers and do busy busy things to make the big cog-wheel turn. Come on li'l gipper, ya with me?!

  23. How to make a longer blanket... by grantspassalan · · Score: 3, Insightful

    An old Indian chief once said that only the United States government believes that by cutting a foot off the top of a blanket and sewing it on the bottom, you get a longer blanket.

    --
    A sufficiently advanced simulation is indistinguishable from reality.
  24. Re:DST is good. by oursland · · Score: 3, Insightful

    Sunlight is not in short supply during summer. So why then is DST observed during summer and not winter, when the world is generally darker?

  25. Re:Why not get rid of the 9-5 and operate 24/7? by rtb61 · · Score: 4, Interesting

    Each to his own, I found it a quite enjoyable break. Something appealing about going home at the crack of dawn.

    Let's be real, no one invented daylights savings, clocks un-invented it. We all did it quite normally prior to the interference of, clocks and other peoples greed and demands.

    Just look at all the productivity gains over the last fifty years, where did it all go, not shared around at all, most of it went to feed the greed of a psychopathic minority. Reality is we should already be down to a 4 day 6 hour per day week but the greedy are never ever satiated, no matter how much they have and more importantly how little the rest of us have.

    --
    Chaos - everything, everywhere, everywhen
  26. Re:Why not get rid of the 9-5 and operate 24/7? by Insightfill · · Score: 3, Insightful

    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?

    In the US, as long as benefits - esp. health care - are connected to "full-time" employment as a binary relationship, this won't happen. It's in the interest of the employer to have as few people as possible at "full-time", and low-wage jobs are notorious for cutting off workers at 34.5 hours, or whatever the threshold is for the state.

    I would GLADLY work 3/4 the hours for 3/4s the pay and 3/4s the health insurance, but it doesn't work like that.

    If we had "single-payer" health insurance, you'd see a LOT more variety in working schedules, and we'd have fuller employment; the same number of hours would be worked (disallowing any network effects from single-payer insurance) but more people would be busy working them.