The four-day week: taking stock and the realities of a work-life revolution

Imagine Friday afternoons freed from email, and a city that breathes differently when most offices close early.

In a co-working space in Reykjavík, mothers pick up children at 15:00, a designer finishes a sprint and goes for a hike, and a team shares status updates in 20 minutes instead of one-hour meetings. That scene is increasingly common since experiments on reduced-hours models began to gain traction in the late 2010s.

New horizons

The movement toward a four-day week grew from scattered pilots to coordinated studies. Notable milestones include Perpetual Guardian in New Zealand, which in 2018 ran a high-profile trial of a four-day week and reported higher job satisfaction and trust. Between 2015 and 2019, Iceland conducted large-scale trials of reduced hours in public institutions, prompting many employers to adopt shorter weeks or flexible hours. In August 2019, Microsoft Japan's "Work-Life Choice" experiment drew headlines by reporting a 40% rise in measured productivity during a month-long trial.

From 2022, organizations like 4 Day Week Global partnered with academic teams at Cambridge, Oxford and Boston College to run larger trials. In 2022, a pilot involving some 61 companies and roughly 2,900 employees across several countries found that productivity was largely maintained, while wellbeing and staff retention indicators improved.

These trials shifted the conversation: the question moved from whether people deserve more time, to how companies can redesign work to produce the same outcomes in less time.

Why now

Several forces explain the acceleration. First, long-term trends in knowledge work exposed inefficiencies: meetings that multiply, email overload, and output evaluated by hours rather than results. The pandemic amplified this: remote work blurred boundaries, people re-evaluated priorities, and burnout rates rose globally.

Second, technological change made some processes faster, enabling teams to automate routine tasks or reduce coordination friction. Third, a cultural shift among younger workers places higher value on autonomy and time. Employers face hiring and retention challenges, so offering a shorter week can be a competitive advantage.

Finally, public policy debates and union experiments in countries like Spain and Iceland gave legitimacy to the model, encouraging more employers to trial reduced hours without immediate pay cuts.

The catches

Reality is nuanced. Not every sector can easily compress five days of work into four. Emergency services, retail, hospitality, and some health professions rely on coverage models that do not adapt well to a uniform reduction in weekly hours. In such contexts, experimentation focuses on rotating days off or flexible staffing, rather than a universal four-day week.

Productivity gains reported in trials often reflect better meeting discipline, prioritization and a temporary morale boost. Long-term effects remain under study. Some companies see initial productivity gains but face scheduling challenges or client expectations that require presence on certain days.

Equity is a recurring concern. If reduced hours are available only to salaried knowledge workers, frontline staff may be left behind. Policymakers and companies must consider fair access, pay continuity, and sector-specific adaptations.

Real stories

In 2018, Perpetual Guardian's founder, Andrew Barnes, reported higher employee trust and reduced turnover after the trial. In 2019, Microsoft Japan's offices closed every Friday in August, introducing shorter meetings and printer shutdowns, and reported increased productivity and lower costs. In small businesses from Spain to Canada, owners reported lower absenteeism and easier recruitment after offering a four-day option, though some cited the difficulty of managing part-time clients.

Conversely, a medium-sized hospital in the UK tested a compressed rota and found scheduling complexity rose, requiring investment in rostering software and temporary agency staff. The lesson: implementation costs matter.

How to try it

If you are a manager curious to experiment, begin modestly. Design a three-month pilot, keep pay constant if possible, define measurable outcomes and protect core hours for meetings. Train teams in meeting hygiene and asynchronous communication. Use employee surveys and objective metrics like throughput, error rates and client satisfaction.

Be transparent with customers and plan staggered days off if continuous service is needed. Finally, treat the experiment as an iterative redesign rather than a one-time switch.

Shorter weeks are not a panacea, but they force a valuable question: is work organized for time served, or for outcomes delivered? The trials since 2018 suggest many answers are promising, provided the change is intentional, measured and equitable.

Thanks for reading, and don't forget, Enjoy Life Moments!