These senators might kill permanent daylight saving time. Here’s why.

Many Americans rejoiced Tuesday after the U.S. House of Representatives passed a bill that would make daylight saving time permanent nationwide and end the biennial business of switching clocks “forward” and “backward.” Now he heads to the Senate, where his future looks bleak.

Following a lopsided 308-117 vote, Florida Republican Rep. Gus Bilirakis rejected America’s “twice a year time change,” calling it “a relic of the past that no longer reflects the way Americans live, work and do business in the 21st century.”

Or President Trump, one of the most prominent supporters of the Sunshine Protection Act. He wrote on social media in May“This is so easy!”

Trump said that means “a longer, brighter day.” “And who could object to that?”

It seems the answer might be: sufficient number of senators to block the bill from becoming law.

One last year’s podium speechSen. Tom Cotton of Arkansas, a Republican who is generally aligned with Trump, said that “proponents of permanent daylight saving are trying to put a sunny face on this bill,” claiming it would mean “more daylight hours” and “more smiles.”

But Cotton continued that the truth would be much darker (pun intended). Daylight saving time, of course, does not create more daylight. It simply adjusts the clocks so that the one hour of daylight that normally occurs in the early morning occurs in the evening.

“When we turn the clock back one hour in the winter, permanent daylight saving time pushes winter sunrises absurdly late and deprives Americans of the morning sunlight that is essential to our safety and well-being,” Cotton said.

Semaphore on Tuesday reported He said Cotton “still opposes permanent daylight saving time” and that he “is not alone.” The release later listed a dozen other senators (Republicans and Democrats) who serve on the Senate Commerce Committee and had previously voted against making daylight saving time permanent:

• John Thune of South Dakota

• Roger Wicker of Mississippi

• Ted Budd of North Carolina

• Amy Klobuchar of Minnesota

• Gary Peters of Michigan

• Tammy Duckworth of Illinois

• Lisa Blunt Rochester of Delaware

It is unclear when the Sunshine Protection Act will be voted on in the Senate. It’s also unclear whether all these senators will still oppose it. But if it were, it would be enough to kill this bill, and with it Trump’s dream of a “longer, brighter day.” 56% of Americans say they share.

So what’s the objection here?

It’s geography, stupid. Permanent daylight saving time would lock the clocks in a “wind-forward” mode, transitioning the entire country to more daylight in the evenings and less daylight in the mornings.

For coastal and Southern states, the benefits of brighter evenings outweigh the costs of darker mornings, even in winter; This helps explain why the Sunshine Protection Act has received support from these regions. For example, it’s the shortest day of the year in West Palm Beach, Florida, where Trump lives. See the sun rise around 8:04 a.m. and set around 6:32 p.m.. This is normal enough.

But elsewhere the cost-benefit calculation is different.

Latitude is half the equation. northern states already Since winter days are shorter than in Southern states, moving sunrise back an hour would leave residents in the dark after school and work start.

Then longitude is also taken into account. Because the time zones are wide, if you live on the far eastern edge of one of them (like Boston), the sun rises relatively early. But if you live at the westernmost end of the same time zone (like Detroit), the sun rises almost an hour later.

As a result, under permanent daylight saving time, winter sunrises will move closer to 9:00 a.m. as you move north and past 9:30 a.m. and begins to creep into the northwestern corners of each U.S. time zone. In some parts of Alaska, the sun wouldn’t rise until 11:15 p.m.

Cotton argued last year that this would be “especially harmful to schoolchildren and working Americans.”

“Children will either walk to school in pitch darkness or schools will have to delay start times,” he claimed. “Meanwhile, construction workers, farmers and others who get up before the sun or need the sun to work may spend three, four or even five hours of the morning without seeing the sun, which could harm their quality of life and potentially their safety at work.”

The senators who have previously disproportionately opposed the Sunshine Protection Act in committee come from states where the sun will rise after 8:30 a.m. in the winter under permanent daylight saving time; so they likely share at least some of Cotton’s concerns.

In his speech last year, Cotton stated that the United States had tried permanent daylight saving time before. Congress passed a law suspending “withdrawal” in 1974, but after the law went into effect, public opinion was so harshly opposed to the idea – to drop From 79% support to 42% in just three months — this is the experiment ended suddenly the following year. It turns out that dark morning rides are not very popular.

“It is said that those who do not learn from history are doomed to repeat it,” Cotton said, predicting that “the same thing will happen again if Congress passes the so-called Sunshine Protection Act.”

Experts widely agree that ending America’s twice-yearly clock changes would be a good move. From where? Because the change itself creates ripple effects as people adjust to their lack of sleep and disruptions to their circadian rhythms. But experts also say permanent daylight saving time will make it harder to fall asleep at night and wake up in the morning. Instead, American Medical AssociationAmerican Academy of Sleep Medicine and many leading researchers It supports permanent standard time, better aligning the human body with the natural light-dark cycle.

Cotton evaluated the permanent standard duration in his speech. But he ultimately opposed it, arguing that most Americans would be unwilling to “sacrifice an extra hour of evening light in the spring and summer for Little League ball games and summer vacations across the country.”

His conclusion: Stick to the status quo rather than forcing some parts of the country to suffer while other parts benefit.

“I don’t like the biannual clock changes any more than any of you do,” Cotton said at the time. But “there is no legal solution to every human problem. Sometimes we have to live with an uneasy compromise between conflicting priorities and interests.”

“This is doubly true when considering how the movement of stars and planets affects the lives of 350 million souls spread across our vast continental nation,” he added.