Twice a year most of the United States moves its clocks, and twice a year somebody explains that we do it for the farmers. That explanation is not just wrong, it is backwards: farmers were the single most effective lobby against Daylight Saving Time, and they got it repealed.
Here is where the idea actually came from.
It wasn't Benjamin Franklin
Franklin gets the credit in roughly every listicle on the subject, on the strength of an essay he sent to the Journal de Paris in 1784.
Read it and the attribution falls apart. It's satire. Franklin, then in his late seventies and living in Paris, affects astonishment at discovering that the sun rises early in summer, and proposes that Parisians be roused from bed by church bells and cannon fire so they might burn fewer candles. He also suggests taxing window shutters and rationing candles.
He never proposed changing a clock. Nobody in 1784 could have — standardised clock time didn't exist yet. It was a joke about Parisian sleeping habits.
A New Zealand entomologist wanted more bug-hunting light
The first real proposal came in 1895, from George Hudson, a post office clerk in Wellington who collected insects in his spare time.
Shift work left him with daylight hours he couldn't use, so he presented a paper to the Wellington Philosophical Society proposing a two-hour seasonal shift. The paper drew more amusement than support, though Hudson thought it worth a second one in 1898. Neither went anywhere.
Then in 1907 a London builder named William Willett picked it up independently, apparently after noticing how many blinds were still drawn on his early-morning rides through Petts Wood. He self-published a pamphlet, The Waste of Daylight, and spent the rest of his life campaigning for it. Parliament rejected the idea repeatedly. Willett died in 1915, a year before Britain adopted it.
What actually made it happen was a war
The thing that turned a hobbyist's proposal into national policy was coal.
On April 30, 1916, Germany and Austria-Hungary moved their clocks forward an hour to reduce the coal burned on evening lighting during the First World War. It worked well enough that Britain followed within weeks, introducing British Summer Time in May 1916. Much of Europe followed that same year.
The United States came late. Congress passed the Standard Time Act in March 1918 — the same law that first gave US time zones legal definition — and with it a wartime daylight saving provision.
It did not outlast the war by much. Congress repealed the daylight saving provision in August 1919, over President Wilson's veto, and American clocks went back for the last time that October.
Farmers hated it
This is the part that gets remembered exactly wrong.
The agricultural lobby was the driving force behind the 1919 repeal, and the reasoning is obvious once you think about it. Cows don't read clocks. Dew doesn't evaporate an hour earlier because the legislature says so. Hay had to dry, milk had to be collected on the same solar schedule, and moving the clock only meant the rest of the world — buyers, shippers, markets — now wanted everything an hour earlier.
Daylight Saving Time was, from the start, an urban idea. Its supporters were retailers, sporting bodies and the recreation industry, all of whom benefited from customers having a lit evening. That coalition has barely changed in a century, and it's still the coalition arguing for permanent DST today.
Then came twenty years of chaos
The US ran year-round "War Time" from 1942 to 1945. When that ended, Congress simply stopped legislating on the question, and the result was two decades of genuine confusion.
Every state, city and town chose for itself whether to observe DST and on what dates. In 1965, Iowa alone had 23 different pairs of start and end dates in use. St. Paul and Minneapolis, adjacent cities, ran an hour apart. A bus route between Steubenville, Ohio and Moundsville, West Virginia crossed seven time changes in 35 miles. Broadcasters and railways found it close to unworkable.
The Uniform Time Act of 1966 ended it by setting national start and end dates — while letting a state exempt itself, a provision amended in 1972 so a state split by a zone line could exempt just one side. That is the escape hatch Arizona and Hawaii used and still use.
The dates have moved four times since
| From | DST period | Why |
|---|---|---|
| 1966 | Last Sunday in April – last Sunday in October | Uniform Time Act |
| 1974–75 | Year-round, then partial | Oil crisis; cancelled early |
| 1976 | Last Sunday in April – last Sunday in October | Back to the 1966 rule |
| 1987 | First Sunday in April – last Sunday in October | Extended by about three weeks |
| 2007 | Second Sunday in March – first Sunday in November | Energy Policy Act of 2005 |
Each extension was justified on energy savings. Which brings us to the awkward part.
The energy argument has not held up
Saving fuel was the original reason and it remains the official one. The evidence is thin.
The Department of Energy's 2008 study of the newly extended DST period found national electricity savings of roughly 0.5% per day during the extra weeks — real, but small enough to be within the noise of other factors.
The more awkward finding came out of Indiana, which until 2006 had counties observing DST and counties that didn't. When the state went statewide, economists had something rare: a natural experiment with a control group. The 2008 study by Matthew Kotchen and Laura Grant found residential electricity demand went up, by around 1%, costing Indiana households an estimated $9 million a year. Lighting savings were real; they were more than cancelled out by air conditioning and heating.
The explanation is that 1970s energy use was dominated by lighting, and modern energy use isn't. The policy outlasted its own rationale.
Which is why the argument is live again
Almost nobody now defends DST on the grounds it was created for. The live argument is about which clock to settle on permanently — the retail-and-recreation case for keeping the light in the evening, versus the sleep-science case that morning light is what human bodies actually run on.
The House voted in July 2026 to make DST permanent. The Senate hasn't, so the clocks still go back on November 1.
A century on from Willett's pamphlet, we are still arguing about it. In the meantime, if you need to know what time it actually is somewhere else, the time zone converter handles the whole mess for you.
Frequently asked questions
Did Benjamin Franklin invent Daylight Saving Time?
No. The 1784 essay he is credited for was satire, published in the Journal de Paris, joking that Parisians should be woken by cannon fire to save candles. He never proposed moving a clock, and standardised clock time did not yet exist. The first real proposal came from George Hudson in 1895.
Was Daylight Saving Time created for farmers?
No, and the truth is the opposite. Farmers were the strongest opponents of DST and led the campaign that repealed it in the United States in 1919. Livestock and crops follow the sun, not the clock, so shifting the clock only pushed the rest of the world an hour ahead of them.
Why was Daylight Saving Time actually introduced?
To save coal during the First World War. Germany and Austria-Hungary moved their clocks forward on April 30, 1916 to cut the fuel burned on evening lighting, and Britain followed within weeks. The United States adopted it in March 1918 under the Standard Time Act.
Does Daylight Saving Time actually save energy?
Barely, if at all. A 2008 Department of Energy study found national savings of about 0.5% a day during the extended weeks. A study of Indiana's 2006 statewide adoption found residential electricity use rose about 1%, because extra heating and cooling outweighed the lighting saved.