On the afternoon of Tuesday, July 14, 2026, the US House of Representatives voted 308 to 117 to make Daylight Saving Time permanent. It was the furthest that idea has ever got in the House, and the coverage was loud enough that a lot of people came away thinking the clocks had stopped changing.
They haven't. Here is what actually happened, and what would have to happen next.
What the House actually did
The bill is H.R. 139, the Sunshine Protection Act, sponsored by Rep. Vern Buchanan of Florida. It passed on roll call 238 at 5:17pm Eastern on July 14, 2026, by 308 votes to 117, with 6 members not voting.
The margin is worth looking at, because it wasn't a party-line vote. Republicans split 193 to 22 in favour. Democrats split 114 to 95 in favour — a narrow majority of the caucus, but a real one. The one independent voted yes. President Trump had publicly backed the bill and signalled he would sign it.
Then it went to the Senate, where it was received on July 15, read twice, and referred to the Commerce, Science and Transportation Committee. That is where it sits today. No markup, no floor vote, nothing scheduled. The Senate returns from recess on September 14.
What the bill would change
The mechanism is cleverer than "we'll stay on DST forever," and it's worth understanding because it explains everything else.
Section 2(a) repeals Section 3 of the Uniform Time Act of 1966 — the part that sets the twice-yearly clock change. Section 2(b) then advances the clock in every one of the nine statutory US time zones by one hour.
The effect is that what we currently call Eastern Daylight Time (UTC−4) simply becomes the new Eastern Standard Time. Same clock reading in summer, one hour later in winter. Nobody "stays on DST" — DST stops existing, and the zones move instead.
One notable gap: the bill as passed by the House contains no effective date. There is no transition period and no start date written into the text. A statute with no effective-date clause normally takes effect on enactment, which would mean the clocks simply never fall back after a signature — but the bill doesn't say that, and the Senate could add a date if it ever takes the bill up.
Why permanent DST needs Congress, but permanent standard time doesn't
This asymmetry confuses almost everyone, and it's the reason nineteen states have passed permanent-DST laws that do nothing.
The Uniform Time Act of 1966 sets a nationally uniform DST period, but it includes a provision letting a state exempt itself by state law. That is how Arizona and Hawaii sit out. Opting out requires nothing from Washington.
What the Act does not contain is the opposite: any route for a state to opt in to year-round DST. A state cannot observe daylight time during the federal standard-time months, because federal law defines what standard time is in each zone. The Act lets a state subtract DST. It doesn't let a state add it.
So the nineteen states that have passed permanent-DST laws — Florida was first in 2018, Texas most recently in 2025 — all wrote them conditionally, pending an amendment to federal law that hasn't come. Those laws are dormant, not in force.
Arizona and Hawaii get to stay put
The bill grandfathers existing exemptions. A state or area that had exempted itself before the date of enactment can choose to keep the clock it has now, rather than being pulled forward an hour.
So Arizona and Hawaii would be unaffected if they wanted to be.
But read the grandfather clause closely and there's a catch that most coverage missed. Because Section 2(a) repeals the opt-out provision entirely, and Section 2(b) protects only exemptions already in force the day before enactment, no state could newly choose permanent standard time afterwards. The door closes behind Arizona and Hawaii. A fair amount of coverage described the bill as giving states an open-ended opt-out; on the text as passed, that reading is hard to sustain.
The territories are messier still. The bill never names them, but it does renumber the zones they sit in — Atlantic time, covering Puerto Rico and the US Virgin Islands, and Chamorro time, covering Guam and the Northern Marianas. Whether the grandfather clause reaches them depends on whether they count as having exempted themselves under the old Act, and the text doesn't say.
We tried this before, and it went badly
This is not a hypothetical. The United States ran year-round Daylight Saving Time once already, and the experiment collapsed inside a year.
Congress passed the Emergency Daylight Saving Time Energy Conservation Act during the 1973 oil crisis. Nixon signed it that December, and permanent DST began on January 6, 1974. It was scheduled to run until April 1975. It lasted until October 27, 1974.
What went wrong was winter mornings. Sunrise slid past 8:30am across the northern half of the country, and children walked to school in the dark. Florida reported eight children killed in traffic in the first weeks of the year against two in the same period twelve months earlier — a contemporaneous count rather than an audited one, but it drove the politics. Federal studies then found the energy savings — the entire justification — weren't there.
Public support tracked the sunrise. Surveyed in December 1973, before it started, roughly 79% of Americans backed year-round DST. By February 1974, with two months of dark mornings behind them, that was down to about 42%. Ford signed the repeal that October.
The argument now
Supporters make an economic and quality-of-life case: more usable evening daylight drives retail, recreation and tourism, and ending the switch removes the health and safety spike that clusters around each transition. That last point is real and both sides agree on it.
What they disagree about is which clock to stop on. The American Academy of Sleep Medicine, joined by the National Sleep Foundation and the Sleep Research Society, holds that permanent standard time is the better choice, because morning light is what anchors human circadian rhythms and permanent DST displaces it year-round. They opposed H.R. 139 the day after it passed, and back a rival bill that would make standard time permanent instead.
The geography matters too. Under permanent DST, midwinter sunrise would come at about 8:55am in Seattle and about 8:50am in Cleveland. Senators from northern and western states have said plainly that children heading to school in the dark near 9am is why they won't vote for it.
So what happens on November 1?
The clocks go back. Nothing has been signed, the Senate hasn't voted, and Majority Leader John Thune has said publicly that it remains to be seen whether the bill can find 60 votes.
Plan on falling back on Sunday, November 1, 2026, and check again in the spring. If you're scheduling across zones in the meantime, the time zone converter tracks the current rules, whatever Congress does with them.
Frequently asked questions
Is Daylight Saving Time permanent now?
No. The House passed the Sunshine Protection Act on July 14, 2026 by 308 to 117, but the Senate has not voted on it and the President has not signed anything. The bill sits in the Senate Commerce Committee. Clocks still go back on Sunday, November 1, 2026.
What would the Sunshine Protection Act actually do?
It repeals the section of the Uniform Time Act that creates the twice-yearly clock change, then shifts all nine US time zone offsets back by one hour. What we now call Eastern Daylight Time would simply become the new Eastern Standard Time, so clocks would read the same in summer and an hour later in winter.
Would Arizona and Hawaii have to start changing their clocks?
No. The bill grandfathers exemptions that were already in force before enactment, so Arizona and Hawaii could keep their current clocks. But because it also repeals the opt-out provision, no other state could newly choose permanent standard time afterwards.
Has the US tried permanent Daylight Saving Time before?
Yes, in 1974, and it was repealed within the year. Permanent DST ran from January 6 to October 27, 1974. Winter sunrises after 8:30am and children walking to school in the dark turned opinion sharply: support fell from about 79% in December 1973 to about 42% by February 1974.