Over the past decade, Iceland has been running one of the boldest experiments in modern work life: cutting working hours, not pay, and watching what happens. Six years after the end of its first major trials, the four-day week has shifted from fringe idea to near-normal reality for the vast majority of Icelandic workers.
A small country tries a big experiment
The story starts in 2015, when Icelandic authorities and trade unions agreed to launch large-scale trials of shorter working weeks. Around 2,500 people took part, just over 1% of the country’s workforce. They worked fewer hours for the same salary.
Participants were drawn from a wide mix of jobs: office staff, nursery workers, hospital employees, council workers and more. The aim was simple but radical: reduce working hours meaningfully and track what happened to productivity, public services and people’s lives.
Instead of squeezing 40 hours into four punishing days, Iceland cut the total hours to around 35–36 per week, with no pay cut.
This detail matters. Many countries talk about a “four-day week” but only compress the same hours into fewer days. Iceland went in a different direction. People genuinely worked less.
Early findings were promising. Productivity did not collapse. Services did not grind to a halt. Workers reported sleeping better, feeling calmer and having more time for family, friends and hobbies. Those results fuelled a bigger political shift.
From trial to near-standard
By 2019, the experiment had grown into a national rethinking of working time. New collective agreements between unions and employers extended shorter weeks to most of the labour market.
Today, around 90% of Iceland’s workers either benefit from reduced hours or have the right to negotiate them. In many workplaces, the standard week has fallen from 40 hours to about 36, spread over four or four-and-a-half days.
For most Icelandic employees, a shorter working week is no longer a quirky benefit; it’s part of the normal contract.
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To make it work, organisations had to change more than just the rota. Managers and staff combed through their days to identify time-wasters. Long, unfocused meetings were cut or scrapped. Email expectations were trimmed. Breaks became shorter but more purposeful. Unnecessary red tape was challenged.
What actually changed in workplaces
- Meetings shortened, with tighter agendas and fewer attendees.
- Shift patterns were redesigned to maintain service coverage.
- Staff were encouraged to focus on core tasks and drop low-value work.
- Teams coordinated more closely to avoid duplication.
- Digital tools were adopted to streamline routine processes.
The result, according to multiple studies, was not a drop in output. In many cases, performance stayed the same or improved. Workers reported greater focus and fewer pointless tasks.
Productivity holds, wellbeing jumps
One of the biggest fears around shorter weeks is that they might hit productivity. In Iceland’s case, that did not happen in any systematic way.
Independent research by groups such as the Autonomy think tank and Iceland’s Association for Sustainability and Democracy found that, overall, productivity in the trial workplaces stayed stable. In some offices and public services, it slightly increased as staff used time more efficiently.
While output stayed steady, wellbeing indicators moved sharply in the right direction: less stress, better mental health and more satisfaction with life.
Surveys showed that a large majority of workers were happy with the change. Many reported lower stress levels, fewer symptoms of burnout and better sleep. Parents said the extra time made school runs and childcare less frantic. Others used the freed-up hours for exercise, study or side projects.
Crucially, the benefits appeared across genders. Shorter weeks made it easier for fathers, as well as mothers, to share domestic and caring responsibilities. That supported Iceland’s broader push for gender equality at home and at work.
An economic test that didn’t break the system
Cutting hours without cutting pay sounds risky from an economic point of view. Iceland’s experience suggests the risk may be smaller than many assume.
The country has kept unemployment low, at around 3–4% in recent years, well below the European average. Its economy has continued to grow, supported by sectors such as tourism, renewable energy and tech. Wages did not collapse, nor did tax revenues from work.
| Indicator | Before large-scale rollout | After rollout (recent years) |
|---|---|---|
| Typical weekly hours | Around 40 | Around 35–36 |
| Share of workers covered | About 1% (pilot phase) | About 90% |
| Unemployment rate | Moderate | Roughly 3–4% |
| Economic growth | Steady, pre-trial | Positive, including around 5% growth in 2023 |
We should be cautious about simple cause-and-effect claims. Iceland is small, with a particular economic structure and strong unions. Still, the combination of shorter weeks, solid growth and low unemployment has drawn attention far beyond the North Atlantic.
How Iceland’s model differs from others
Plenty of countries now talk about the four-day week, but their versions vary dramatically.
In Belgium, for instance, workers can compress full-time hours into four longer days. The total hours remain roughly the same. That model has produced limited enthusiasm, with a small minority of employees using the option. Many find ten- or eleven-hour days simply too exhausting.
Iceland’s key innovation is not the extra day off alone, but the decision to truly cut hours while protecting salaries.
Spain has launched pilot schemes that more closely mirror Iceland’s approach, with hundreds of companies signing up for shorter weeks supported by public funding. The UK ran a major six-month trial involving dozens of firms, from marketing agencies to fish-and-chip shops. A majority kept the new system after the end of the test.
Each country adapts the concept to local laws, union strength and business culture. Iceland’s experience is now frequently cited in parliamentary debates and corporate boardrooms as proof that shorter weeks can function at scale, not just in a handful of trendy start-ups.
Could this work elsewhere?
For governments and companies watching from abroad, the obvious question is: would this survive contact with their own realities?
Sectors that already run 24/7 — hospitals, supermarkets, public transport — face the toughest practical questions. Cutting hours either means hiring more people, reorganising shifts, using technology more, or reducing services. In Iceland, many public services did the hard work of redesigning rotas rather than cutting opening hours.
Office-based businesses usually find it easier. Their main constraints are culture and management style. Shifting to shorter weeks demands clear priorities, trust in staff and a willingness to kill unproductive habits, such as endless meetings and email chains.
Risks and trade-offs that rarely make the headlines
Shorter weeks are not magic. Several risks keep coming up in international trials:
- Workload creep: tasks quietly pile up on remaining days if companies don’t adjust expectations.
- Inequality: higher-paid or unionised sectors may access benefits that lower-paid workers do not.
- Scheduling strain: small teams struggle to maintain cover when one person is off an extra day.
- Hidden overtime: staff answer emails on their “day off” unless boundaries are enforced.
In Iceland, unions pushed hard to set clear rules and protect workers from these pitfalls. That collective bargaining power is harder to replicate in places where union membership is low.
What a four-day week might look like for you
To picture how this could play out in practice, imagine a mid-sized UK or US marketing agency. The company agrees to move from a 40-hour to a 32–34-hour week over four days, with the same pay.
Management and staff sit down and redesign their week. Client meetings are capped at 30 minutes unless there’s a strong reason to go longer. One afternoon is blocked off for deep work with no internal calls. Email reply times are relaxed slightly, cutting constant checking. New software automates routine reporting. In return, employees commit to focused work during core hours and avoid late-night messaging.
If profits hold after six months, the agency keeps the system. If not, they adjust: maybe some teams keep four days, others adopt a 4.5-day compromise. The Icelandic case suggests there is room to experiment without assuming instant catastrophe.
For individual workers, the extra time each week can be surprisingly powerful. Some parents use it for school pick-ups or caring duties. Others build small freelance projects, take courses, or simply rest. The point, shown starkly in Iceland’s data, is that rested people tend to work better when they are on the clock.
By treating time as a core resource, not an afterthought, Iceland has nudged global debates about what a full-time job should actually mean in the 21st century.