Post actualizado el día octubre 27, 2026 by DeiviSanzPlay
Twice a year, millions of people stumble around half-asleep because someone decided we should all pretend it’s an hour earlier or later. The time change in 2026 is still happening across most of Europe and North America, even though the evidence that it saves energy is thin and the health complaints keep piling up. So why do we keep doing it?
Short answer: inertia, politics, and a coordination problem nobody wants to solve first. The long answer involves a century of bad science, a European Union proposal that went nowhere, and a handful of places that quietly opted out and never looked back.
Where the daylight saving time idea actually comes from
The daylight saving time story usually starts with Benjamin Franklin, but that’s a myth. Franklin once joked about Parisians waking up earlier to save candles. He never proposed changing clocks. The real push came during World War I, when Germany and Austria-Hungary introduced it in 1916 to conserve coal. The UK, France, and the US followed within a year or two.
After the war, most countries dropped it. It came back during World War II, then again during the 1970s oil crisis. That’s the pattern: daylight saving time returns when there’s a fuel panic, and gets quietly abandoned when the panic fades. The energy argument has always been the excuse, not the reason.
Modern studies are pretty blunt about it. Research from the US Department of Energy and independent academics shows electricity savings from daylight saving time are now around 0.5% or less. With LED lighting and smarter heating systems, the original rationale has basically evaporated.
Why the time change in Spain is still on the calendar
Spain is a weird case. The country runs on Central European Time, which geographically doesn’t match its longitude. Spain should be on the same clock as the UK and Portugal, but Franco aligned it with Berlin in 1940 to match Nazi Germany. That decision is why Spaniards eat dinner at 10 pm and why the time change in Spain feels so disorienting compared to its neighbours.
The European Union tried to kill the whole thing. In 2019, the European Parliament voted to end seasonal time changes by 2021, letting each member state pick permanent summer or winter time. The Council never reached an agreement. Countries in the south, like Portugal and Greece, want permanent winter time. Countries in the north, like Finland and the Baltics, want permanent summer time. Nobody wants to be the one whose clock is out of sync with their trading partners.
So the time change in Spain keeps happening, twice a year, because Brussels couldn’t close the deal.
How the US does it, and why it’s a mess
In the United States, daylight saving time starts on the second Sunday of March and ends on the first Sunday of November. That’s fixed by federal law under the Uniform Time Act of 1966, but states can opt out of DST entirely. Hawaii and Arizona (except the Navajo Nation) have done exactly that.
Florida’s legislature has voted multiple times to stay on daylight saving time permanently. So has California, Washington, and a dozen others. The problem: federal law doesn’t allow permanent DST without an act of Congress, and the Sunshine Protection Act has been introduced and stalled repeatedly. So states are stuck waiting.
The result is a patchwork. For a few weeks each spring and autumn, Arizona and Hawaii are on different offsets than the rest of the country, which wreaks havoc on flight schedules, TV broadcasts, and conference calls.
Chile and the Southern Hemisphere: same problem, opposite calendar
The time change in Chile happens in April and September, not March and October, because the seasons are flipped. But the dates aren’t fixed. Chile’s government adjusts them by decree, sometimes with only a few weeks’ notice. In 2022, Chile extended daylight saving time by three months, then reversed course. In 2023, it changed the dates again.
That inconsistency is exactly what makes the time change so frustrating. In the US and Europe, you can at least set a recurring reminder. In Chile, you have to check the news.
What the health research actually says
The strongest argument against the time change isn’t energy. It’s health. When clocks jump forward in spring, heart attack rates rise by about 24% on the Monday after, according to a 2014 study in Open Heart. Stroke risk goes up too. Sleep deprivation from losing an hour is real, and the effects last for days.
The autumn change is gentler but still disruptive. People with seasonal affective disorder report worse moods. Shift workers get hit hardest. And teenagers, whose circadian rhythms are already delayed, struggle the most in the week after the spring shift.
- Sleep disruption: 3 to 7 days to fully adjust, sometimes longer.
- Cardiovascular risk: measurable spike in heart attacks and strokes after the spring change.
- Workplace accidents: studies show a small but real increase on the Monday after the shift.
- Productivity: the supposed gain from extra evening daylight is offset by morning grogginess.
What actually happens in 2026
Here’s the honest answer: the time change in 2026 is still happening in Spain, most of Europe, the US, Canada, and Chile. Mexico abolished daylight saving time in 2022 for most of the country, though border towns still follow the US schedule. Russia tried permanent summer time in 2011 and hated it so much they switched to permanent winter time in 2014. Turkey went permanent summer time in 2016 and never looked back. China has had a single time zone since 1949.
So there’s no global trend. Some countries are quitting, others are doubling down. The European Union’s plan is technically still on the table but has been frozen since 2019. Any real change would require unanimous agreement among 27 member states, which is about as likely as a unanimous vote on anything else.
Why we probably won’t stop anytime soon
The reason isn’t that the time change is popular. Polls in Europe consistently show a majority want it gone. The reason is coordination. If Spain switches to permanent summer time and Portugal stays on winter time, the Iberian peninsula has two clocks. If Germany and France pick different schedules, cross-border trains and business meetings get messy.
Nobody wants to move first, because moving first means being wrong alone. So the default is to keep doing what we’ve always done, even though the original justification is dead and the health costs are documented.
The time change isn’t a scientific necessity. It’s a political habit. And habits, especially ones shared by 70 countries, are the hardest thing in the world to break.
