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The House of Representatives voted Tuesday to end America's twice-yearly clock ritual once and for all, passing the Sunshine Protection Act by an overwhelming 308-117 margin and moving the country one step closer to making Daylight Saving Time permanent. President Donald Trump supports the change. The optics are seductive. The name alone — Sunshine Protection Act — sounds nearly impossible to oppose.

But the United States has been here before. It tried permanent Daylight Saving Time in the winter of 1973-74, and the experience was instructive in ways that supporters of Tuesday's vote have either forgotten or chosen not to mention.

The Vote That Looked Easier Than It Is

The margin — 308 in favor, 117 opposed — suggests a landslide of political consensus. And on its surface, the appeal is straightforward: Americans broadly dislike changing their clocks twice a year, the disruption to sleep and schedules is real and measurable, and eliminating the ritual feels like a rare piece of unambiguous quality-of-life legislation.

Trump framed it in characteristic terms. Writing in May, he said the change would give Americans "a longer, brighter Day" and posed the rhetorical question that has become the bill's unofficial slogan: "And who can be against that?"

As it turns out, quite a few people — once they experience what permanent Daylight Saving Time actually produces in the depths of winter.

1974: The Last Time America Tried This

In the midst of the 1970s energy crisis, President Richard Nixon proposed making Daylight Saving Time permanent for two consecutive winters, arguing it would conserve energy during a period of acute national scarcity. Congress moved quickly. The change took effect for the winter of 1973-74.

Public support collapsed with startling speed. Data from the National Opinion Research Center at the University of Chicago showed 79% of Americans supported the change in December 1973. By February 1974 — just two months later — that figure had plummeted to 42%. Some polls recorded support dropping even lower. A subsequent Department of Transportation study found the change had not saved meaningful amounts of energy — the justification for the entire experiment.

What it had produced, instead, were months of cold, dark winter mornings that sent children to bus stops and adults to work before the sun had risen. Congress reversed course later in 1974. The experiment lasted less than a year.

Eight Children and the Morning Traffic Disaster

The most sobering data point from the 1974 experiment involves Florida. Time magazine reported in February of that year that eight Florida children had died in early-morning traffic accidents in the month following the clock change, compared to just two in the same period the year prior — a fourfold increase that concentrated the mind of Congress considerably.

When the vote to reverse the change came, an anonymous House member told the New York Times: "There seemed to be some indication that there were more deaths, and everyone got a little nervous."

It is fair to ask whether permanent Daylight Saving Time actually caused those deaths, or whether the comparison is confounded by other variables. It is equally fair to note that the current system of changing clocks carries its own documented costs. A 2016 academic study estimated that the twice-yearly clock shift caused more than 30 deaths annually at a social cost of $275 million, driven by circadian disruption and sleep-deprived drivers. Neither option is without harm. That is precisely the problem.

What Permanent Daylight Saving Time Actually Means for Winter Mornings

Supporters of the Sunshine Protection Act market it as a gift of additional sunlight. The reality is more precise and considerably less cheerful: it does not create sunlight, it shifts it. In winter months, that shift means later sunrises — not earlier sunsets — which has dramatic practical consequences for large portions of the country.

The implications, mapped by the Washington Post in 2024, are striking. Parts of Michigan, North Dakota, and Montana would experience their latest winter sunrises after 9:30 a.m. Indianapolis and Seattle would see their latest winter sunrises approach 9 a.m. Washington, DC, would go more than two and a half months without a sunrise before 8 a.m. Parts of more than half a dozen states would experience at least five months with no sunrises before 8 a.m.

In practical terms: schoolchildren standing at bus stops in the dark, for months on end, across much of the northern half of the country.

Daylight Saving Time scholar Michael Downing noted in 2005 that the 1974 experiment also created additional disruptions that had not been anticipated — putting American clocks out of alignment with European time, complicating religious observances tied to sunrise, and failing to generate the farmer support that advocates had predicted.

From Unanimous Consent to a 16-12 Committee Vote

The political trajectory of this legislation reveals a learning curve in progress. The Senate passed permanent Daylight Saving Time in 2022 by unanimous consent — meaning without extended debate, without objection, and without a recorded vote. Republican Sen. Charles Grassley of Iowa offered what may stand as the most candid explanation for that speed: "All I know is, constantly, every year, my wife wants it to be permanent."

The bill stalled in the House that year and never became law. But the Senate's breezy unanimity did not survive contact with the historical record. GOP Sen. Tom Cotton of Arkansas became one of the bill's most outspoken critics, citing the 1974 precedent and urging his colleagues to absorb the lessons of that experiment before repeating it.

Cotton's warning appears to have landed with at least some of his colleagues. When the Senate Commerce Committee considered the measure last year, it passed narrowly — 16 to 12 — a result that stands in striking contrast to the zero objections recorded just three years earlier.

"Not every human problem has a legislative solution," Cotton said last year in a Senate floor speech opposing the bill. "Sometimes we have to live with an uneasy compromise between competing priorities and interests. That's doubly true when considering how the movement of the stars and the planets affects the lives of 350 million souls spread across our vast continental nation."

What Comes Next

The House vote sends the Sunshine Protection Act to the Senate, where the Commerce Committee's 16-12 margin signals that unanimous consent is no longer a given and that the bill will face a more substantive debate than it received in 2022. Cotton's opposition — and the increasingly organized coalition of critics citing the 1974 precedent — means the measure's path to Trump's desk is less certain than Tuesday's lopsided House vote might suggest.

The core tension in this debate has not changed. Americans dislike changing their clocks — that sentiment is genuine, widespread, and bipartisan. But the choice is not between changing clocks and sunshine. It is between two imperfect arrangements of the same finite hours of winter daylight, each of which distributes inconvenience and darkness differently across a nation of 350 million people spread across multiple time zones.

America tried to shortcut that choice in 1974. The experiment lasted less than a year. The House voted to try again on Tuesday, by a margin of 308 to 117. The Senate, and the historical record, will have the next word.