My cousin in Dublin texted me last Tuesday at 2 p.m. — her time — with a photo of her feet propped up on a park bench. "Third day of the weekend," she wrote. "Still getting paid. Try not to be jealous."
Reader, I was jealous.
Her company switched to a four-day workweek last year, and she's spent every Friday since doing yoga, brunching, and slowly becoming insufferable at family gatherings. Meanwhile, I'm over here refreshing my inbox on a Saturday like a chump because some client in a different timezone doesn't understand boundaries.
But here's the thing — she's not the anomaly anymore. She's the early adopter. The four-day workweek isn't a quirky experiment confined to a few Scandinavian startups. It's going mainstream, and the list of countries lining up to try it keeps growing.
So let's talk about who's actually doing this, who's faking it, and where it's headed next.

The Results Are In, and They're Kind of Embarrassing for the Five-Day Crowd
Let's be honest — when the first big four-day workweek trials launched, plenty of skeptics (me included, occasionally) predicted chaos. Clients would flee. Deadlines would crumble. Productivity would tank.
Nope.
The UK's massive 2022 pilot — 61 companies, nearly 3,000 workers — reported that 92% of participating companies chose to keep the four-day week after the trial ended. Revenue stayed roughly flat. Staff turnover dropped by more than half. Sick days plummeted.
I've found that when people get more time back, they don't use it to slack off at work — they use it to rest, and rested people are terrifyingly efficient. It's almost like burnout was the problem all along. Wild concept.
Iceland ran trials between 2015 and 2019 with thousands of public sector workers, and the results were so good that roughly 86% of Iceland's working population now has access to reduced-hour arrangements or at least the right to negotiate them. Iceland basically looked at the data, shrugged, and said "sure, sounds good."
That's the energy I need from more governments.
From Pilots to Policy: The Four-Day Workweek Countries Making It Official
Here's what most people miss — there's a huge difference between a company trying a four-day week and a country building it into law. The first is a perk. The second is a paradigm shift.
Belgium became one of the first countries to legislate a version of this. Since 2022, Belgian employees have had the legal right to request a four-day week — compressing the same hours into fewer days. It's not a pure reduction, and critics rightly point out that four ten-hour days can be brutal. But it's a legal foothold, and footholds matter.
Portugal launched a government-backed pilot in 2023 with dozens of companies. Spain has been funding reduced-hour trials for small and mid-sized firms. Germany is watching closely, with major unions pushing hard for shorter weeks in key industries.
And then there's Japan — yes, that Japan, the land of the legendary overtime grind. The government has actively encouraged companies to adopt four-day weeks, partly to address a labor shortage and partly because the country's work culture is, frankly, unsustainable. When Japan starts nudging employers toward fewer days, you know the tide has turned.

The Countries Most Likely to Go Next
So who's on deck? Based on pilot momentum, union pressure, and political appetite, here's my shortlist:
- The Netherlands — already the world's leader in part-time work. A full four-day norm is a small step, not a leap.
- Scotland — government-funded trials have been in the works, and public support is strong.
- New Zealand — remember when Prime Minister Jacinda Ardern floated the idea to boost tourism and wellbeing? The conversation never really died.
- South Korea — facing a demographic cliff and brutal work hours, policymakers are openly debating shorter weeks.
- Canada — several provinces are running or planning pilots, and the pressure from younger workers is loud.
Okay, But What About the Rest of Us?
Here's where I get real with you. If you work in a warehouse, a hospital, a restaurant, or a factory, a four-day week looks very different — and sometimes impossible without major staffing changes. I'm not going to pretend a desk-job pilot automatically translates to shift work. That's the honest asterisk on this whole movement.
But that's exactly why the next phase matters. The interesting question isn't "does it work for knowledge workers?" — we know it does. The question is how we design shorter weeks for nurses, teachers, and everyone whose job can't be compressed into a laptop.
Some countries are already wrestling with this. Others are pretending it's not a problem. Guess which ones will be scrambling in five years?

The Real Reason This Is Happening (It's Not Altruism)
Let's be honest about the economics. Companies aren't embracing four-day weeks out of the goodness of their hearts.
They're doing it because talent is scarce and workers have options. If your competitor offers Fridays off and you don't, guess who wins the recruiting battle? They're doing it because burnout costs money — turnover, sick leave, quiet quitting, all of it. And they're doing it because AI and automation are eating routine tasks, which means output no longer scales neatly with hours worked.
The five-day week isn't a law of nature. It's a relic of the industrial era — Henry Ford popularized it, and we just... never questioned it. We've been running on century-old firmware.
I've found that the biggest obstacle to the four-day workweek isn't productivity or profit. It's identity. So many of us were raised to believe that our worth is measured in hours logged. Letting go of that is harder than any spreadsheet.
So here's my challenge to you: next time your workplace surveys employees about "wellbeing initiatives," don't ask for a fruit basket. Ask for a Friday. Ask your manager what a pilot would actually look like. Ask your HR team why not.
Because the countries adopting this next? They're not waiting for permission. They're just doing it — and the rest of us will be playing catch-up, one exhausting Monday at a time.

