The 4-Day Workweek: Results from Global Pilot Programs

The concept of a four-day workweek has moved from a theoretical perk to a data-backed business strategy. Following the global disruptions of 2020, organizations began questioning the necessity of the standard 40-hour, five-day schedule. Recent large-scale trials conducted by non-profits and universities have provided concrete numbers regarding revenue, employee health, and output.

This article reviews the specific findings from major pilot programs in the UK, North America, and elsewhere to determine if working less actually leads to producing more.

The Massive UK Trial: 2022 Findings

The most significant data set currently comes from the United Kingdom. In the second half of 2022, the non-profit organization 4 Day Week Global coordinated the world’s largest trial of the four-day workweek. This pilot involved 61 companies and approximately 2,900 employees across various industries, from marketing agencies to fish-and-chip shops.

The trial operated on the 100-80-100 model:

• 100% of the pay: Employees received their full salary.
• 80% of the time: Hours were reduced (typically to 32 hours).
• 100% of the productivity: Output expectations remained the same.

Revenue and Productivity Data

Critics often assume that cutting hours by 20% leads to a corresponding drop in revenue. The UK trial results contradicted this assumption.

Researchers from the University of Cambridge and Boston College analyzed the financial data provided by the participating companies. They found that company revenue did not drop. In fact, revenue increased by a weighted average of 1.4% during the six-month trial period alone.

When comparing revenue to a similar period from previous years, the results were even more staggering. On average, companies saw a 35% increase in revenue compared to previous years. This suggests that the shorter week catalyzed growth rather than hindered it.

Retention and Participation

The administrative results were equally decisive. Out of the 61 companies that entered the trial:

• 56 companies decided to continue the four-day week pilot.
• 18 companies immediately made the policy permanent.
• Only three companies decided to pause the trial.

Staff turnover dropped by 57% during the trial period. For businesses, this represents a significant cost saving, as recruiting and training new staff is often one of the highest operational expenses.

North American Pilot Results

While the UK trial garnered headlines for its size, a simultaneous pilot program ran in the United States and Canada involving 41 companies. These findings mirrored the European data but offered additional insights into American corporate culture.

The US/Canada trial reported an 8% increase in revenue over the course of the pilot. When compared to the previous year, revenue was up 37.55%.

The hiring metrics were particularly notable in this region. Before the trial, many of these companies reported difficulty filling open roles. During the reduced-hour schedule, the number of new hires increased while resignations plummeted. None of the participating organizations expressed an intention to return to a five-day schedule immediately following the conclusion of the data gathering.

Case Studies: Corporate Giants and Specific Wins

Beyond the aggregate data from 4 Day Week Global, individual corporations have released their own internal audits regarding shorter work schedules.

Microsoft Japan

In August 2019, Microsoft Japan implemented a “Work-Life Choice Challenge.” They closed their offices on Fridays, giving their 2,300 employees a three-day weekend without a pay cut.

The results were precise:

• Productivity: Sales per employee rose by 39.9% compared to August 2018.
• Costs: Electricity consumption dropped by 23.1%, and paper printing decreased by 58.7%.
• Efficiency: Standard meeting times were cut from 60 minutes to 30 minutes to accommodate the tighter schedule.

Atom Bank

Atom Bank, a UK-based app bank, switched its 430 employees to a four-day week in November 2021. They did not just see internal improvements; they saw a massive shift in brand desirability.

Immediately following the announcement, Atom Bank reported a 500% increase in job applications. This allowed them to select higher-quality talent than their competitors who were still operating on a traditional schedule.

Kickstarter

The crowdfunding platform Kickstarter participated in a 2022 pilot. They noted that the constraints of a shorter week forced better documentation and clearer meetings. The company reported that they achieved the same amount of work in fewer hours simply by trimming “performative” work and focusing on actual output.

Why Productivity Increases

The data consistently raises a question: How can people do the same work in less time? The trials suggest that the standard 40-hour week contains a significant amount of “dead time.”

Parkinson’s Law

The phenomenon is often attributed to Parkinson’s Law, which states that “work expands to fill the time available for its completion.” When employees know they have 40 hours, tasks stretch out. When they have 32 hours, urgency increases.

Reduced Burnout

The UK trial utilized surveys to track employee health. The results showed:

• 71% of employees reported reduced levels of burnout.
• 39% reported being less stressed.
• 40% experienced fewer sleep difficulties.

Rested employees make fewer mistakes. In industries like software development or accounting, a single error can take hours to fix. By reducing fatigue, companies reduce the time spent on error correction.

Challenges and Industry Limitations

Despite the positive data, the four-day week is not universally applicable without friction. The pilots highlighted specific sectors where implementation was difficult.

Customer-Facing Roles: Businesses that require physical presence (retail, healthcare, hospitality) cannot simply close on Fridays. These organizations must implement a roster system where staff rotate days off. This requires more complex management and, in some cases, hiring more staff to cover the gaps, which can offset the productivity gains.

The “Intensity” Problem: Some employees in the pilots reported that their workdays became more intense. Because social breaks and “water cooler” chats were sacrificed to meet deadlines, a small percentage of workers felt more pressure during the four days they were active.

Frequently Asked Questions

Does a 4-day workweek mean working 10 hours a day? Generally, no. The “compressed” workweek (4 days x 10 hours) is different from the reduced workweek tested in these pilots. The trials focused on 32-hour weeks (4 days x 8 hours) with no reduction in pay.

Did any companies fail in the trials? Yes. In the UK trial, a small number of companies dropped out. Some cited chaos in scheduling or client confusion. One engineering consultancy found that they could not respond fast enough to immediate client demands on the off day.

Are governments getting involved? Yes. Belgium became the first country in Europe to legislate the right to a four-day week, though their model allows for compressing 5 days of hours into 4 days. The United Arab Emirates transitioned government entities to a 4.5-day week (ending at noon on Fridays) to align better with global markets and religious observances.

Does this apply to blue-collar jobs? It is more difficult but possible. Manufacturing plants often use the four-day model to save on startup and shutdown costs for machinery. If a machine takes two hours to heat up, running it for four long shifts is often more efficient than five short ones. However, specific output (like widgets per hour) is capped by machine speed, not just human effort.