Few workplace ideas generate as much enthusiasm\u2014and scepticism\u2014as the four-day working week.<\/p>\n\n\n\n
Supporters argue that employees can accomplish the same amount of work in fewer hours when organisations eliminate unnecessary meetings, streamline processes and allow workers more time to recover. Critics raise an obvious question: if five days of work can genuinely be completed in four, why were organisations using five days in the first place?<\/p>\n\n\n\n
Until recently, much of the debate rested on small company experiments, employee surveys and anecdotal success stories.<\/p>\n\n\n\n
That is beginning to change.<\/p>\n\n\n\n
A major peer-reviewed study published in Nature Human Behaviour<\/em> in 2025 examined 2,896 employees across 141 organisations in Australia, Canada, Ireland, New Zealand, the United Kingdom and the United States. Following six-month four-day-week interventions without reductions in pay, researchers reported improvements in burnout, job satisfaction, mental health and physical health that were not observed in employees from 12 comparison organisations.<\/p>\n\n\n\n Meanwhile, British organisations continue to experiment with shorter working time. One UK pilot involving 17 companies and almost 1,000 employees ended with all 17 organisations deciding to continue operating a shorter working week after the trial, according to the 4 Day Week Foundation and Boston College.<\/p>\n\n\n\n The evidence is becoming difficult for management researchers to ignore.<\/p>\n\n\n\n But it does not<\/strong> mean every business should immediately close its offices on Friday.<\/p>\n\n\n\n The more interesting question is not whether the four-day week \u201cworks.\u201d It is which organisations can make it work, through which management practices, and under what conditions<\/strong>.<\/p>\n\n\n\n A genuine four-day working week should not be confused with compressing 40 hours into four longer days.<\/p>\n\n\n\n Under the model tested in many recent trials, employees receive approximately the same salary while their normal working time is meaningfully reduced. The principle is often described as maintaining 100% of pay for roughly 80% of previous working time while aiming to maintain organisational output.<\/p>\n\n\n\n That is very different from asking an employee to work four ten-hour shifts.<\/p>\n\n\n\n The distinction matters because the management challenge is not simply moving hours from Friday to Monday through Thursday. The organisation must find ways to accomplish its work with fewer total working hours.<\/p>\n\n\n\n The 2025 Nature Human Behaviour<\/em> study therefore did not simply give employees an additional day away from work. Participating organisations underwent a period of work reorganisation before the six-month trial, specifically intended to improve efficiency and collaboration.<\/p>\n\n\n\n This point is central to understanding the four-day week.<\/p>\n\n\n\n The intervention is not merely fewer hours. It is often organisational redesign accompanied by fewer hours.<\/strong><\/p>\n\n\n\n The international study by Fan, Schor, Kelly and Gu represents one of the most substantial pieces of evidence so far.<\/p>\n\n\n\n Researchers analysed employees in 141 organisations across six countries. They compared workers before and after implementation of an income-preserving four-day week and also examined employees from 12 organisations that did not undertake the intervention.<\/p>\n\n\n\n The results showed improvements in four important outcomes: burnout, job satisfaction, mental health and physical health. Employees experiencing larger individual reductions in working hours tended to report greater wellbeing improvements. Researchers found that reduced fatigue, fewer sleep problems and improved perceptions of work ability helped explain the results.<\/p>\n\n\n\n That finding moves the discussion beyond the assumption that workers simply \u201clike having Fridays off.\u201d<\/p>\n\n\n\n Recovery appears to matter.<\/p>\n\n\n\n An employee who is less exhausted, sleeps better and begins the working week with greater capacity may perform differently during working hours from an employee experiencing chronic fatigue.<\/p>\n\n\n\n That creates an important possibility for management: working time and productive capacity are not necessarily the same thing<\/strong>.<\/p>\n\n\n\n Eight hours spent at work do not automatically produce twice the useful output of four highly focused hours.<\/p>\n\n\n\n This distinction is equally important.<\/p>\n\n\n\n The 2025 Nature Human Behaviour<\/em> research provides strong evidence concerning employee wellbeing<\/strong>. It should not be misrepresented as a controlled demonstration that every organisation can reduce working time by 20% and automatically increase output by the same amount.<\/p>\n\n\n\n Productivity is far harder to measure consistently across 141 organisations performing different types of work.<\/p>\n\n\n\n A software company can measure releases, customer tickets or development milestones. A restaurant must maintain opening hours. A hospital must provide continuous care. A manufacturing plant may be constrained by machine capacity. A law firm may historically measure work through billable hours.<\/p>\n\n\n\n The economic meaning of \u201cproductivity\u201d therefore differs substantially between organisations.<\/p>\n\n\n\n There is also an important selection issue. Organisations entering four-day-week trials are not a random sample of every employer in an economy. They are generally organisations willing to experiment with shorter working time. The results are therefore highly informative, but they should not be interpreted as proof that identical outcomes would occur in every company, industry or country.<\/p>\n\n\n\n That nuance is essential if management research is to move beyond advocacy on one side and dismissal on the other.<\/p>\n\n\n\n One particularly interesting British experiment has taken place outside the private sector.<\/p>\n\n\n\n South Cambridgeshire District Council introduced a four-day working week initially to address recruitment and retention difficulties. The Council subsequently became the first UK council to make its four-day arrangement permanent.<\/p>\n\n\n\n Its model expects participating staff to complete their work in approximately 85% of their previous contracted hours without a reduction in salary.<\/p>\n\n\n\n By 2025, independent analysis involving the Universities of Salford, Bradford and Cambridge found that 21 of 24 monitored services had either improved or remained at similar performance levels<\/strong> since four-day working began in 2023. Areas recording statistically significant improvements included the proportion of contact-centre calls answered and processing times for some housing-benefit, council-tax-support and planning activities.<\/p>\n\n\n\n The workforce effects were also substantial.<\/p>\n\n\n\n According to the Council, job applications increased by more than 120%, employee departures fell by more than 40%, and reduced reliance on agency staff contributed to reported annual savings of \u00a3399,263.<\/p>\n\n\n\n These results are especially interesting because they reveal another way a shorter week can potentially produce economic value.<\/p>\n\n\n\n The return does not necessarily come only from individual employees completing tasks faster.<\/p>\n\n\n\n It can also come from lower recruitment costs, reduced turnover, fewer vacancies, lower sickness absence, stronger retention and reduced dependence on temporary workers<\/strong>.<\/p>\n\n\n\n This changes how managers should calculate whether a four-day week is economically viable.<\/p>\n\n\n\n Suppose reducing working time increases direct labour cost per hour by 15%. On the surface, the arrangement may appear expensive.<\/p>\n\n\n\n But suppose the same organisation has been losing experienced employees, spending heavily on recruitment agencies and repeatedly training replacements.<\/p>\n\n\n\n If a shorter week significantly reduces employee turnover, the organisation may recover some or all of the apparent cost through avoided recruitment and replacement expenses.<\/p>\n\n\n\n The organisation may also become more attractive in a competitive labour market without having to win that competition entirely through higher salaries.<\/p>\n\n\n\n A four-day week can therefore function partly as an employee-value proposition<\/strong>.<\/p>\n\n\n\n For knowledge-intensive businesses competing for software developers, accountants, engineers, consultants, researchers and other skilled employees, flexibility around working time could become a form of non-wage competition.<\/p>\n\n\n\n That possibility deserves considerably more research.<\/p>\n\n\n\n The answer is not usually \u201cwork faster.\u201d<\/p>\n\n\n\n Successful trials frequently involve eliminating activities that consume working time without generating equivalent value.<\/p>\n\n\n\n Earlier University of Cambridge research into the UK’s large four-day-week trial documented changes such as shorter meetings with clearer agendas, designated periods for uninterrupted work, reforms to email practices, better handovers and closer examination of production processes.<\/p>\n\n\n\n This suggests that shorter working time can act as a management constraint.<\/p>\n\n\n\n When time appears abundant, organisations can tolerate unnecessary recurring meetings, unclear responsibilities, duplicated reporting and lengthy approval processes.<\/p>\n\n\n\n When working time becomes deliberately scarce, those inefficiencies become visible.<\/p>\n\n\n\n A company planning a four-day week may suddenly ask questions it should perhaps have been asking already: Does every person need to attend this meeting? Why does this report exist? Why are three managers approving this decision? Could this process be automated? Why are employees responding continuously to internal email instead of completing focused work?<\/p>\n\n\n\n The four-day week may therefore function as a catalyst for process innovation<\/strong>.<\/p>\n\n\n\n Consider two companies.<\/p>\n\n\n\n Company A removes Friday from the calendar but changes nothing else. Employees still attend the same meetings, deal with the same interruptions and work through inefficient approval systems.<\/p>\n\n\n\n Company B redesigns meetings, automates repetitive processes, gives employees uninterrupted focus periods, removes redundant reporting and clearly prioritises outputs before reducing working time.<\/p>\n\n\n\n Calling both arrangements a \u201cfour-day week\u201d hides an enormous difference.<\/p>\n\n\n\n The first is principally a reduction in labour hours.<\/p>\n\n\n\n The second is an organisational transformation programme.<\/p>\n\n\n\n This may explain why management capability is likely to determine whether reduced working time succeeds.<\/p>\n\n\n\n Companies must decide what output actually matters, identify waste, redesign workflows and establish performance measures that focus on results rather than physical presence.<\/p>\n\n\n\n In that sense, the four-day week challenges one of the oldest assumptions of office management: that time spent at work is an adequate proxy for contribution.<\/p>\n\n\n\n The model is easiest to imagine in knowledge work where substantial portions of the working week are discretionary.<\/p>\n\n\n\n It becomes more complicated when business output is tightly tied to opening hours or physical staffing.<\/p>\n\n\n\n A hotel cannot simply stop accommodating guests on Friday. A hospital cannot postpone emergency care. A supermarket still needs employees at checkouts and distribution centres. A manufacturer whose machines already operate near capacity may not be able to produce five days of output in four without additional capital or shifts.<\/p>\n\n\n\n These organisations may still explore reduced working time, but implementation might involve staggered days off rather than shutting the organisation for one day.<\/p>\n\n\n\n This explains why \u201cfour-day week\u201d can refer to multiple organisational models.<\/p>\n\n\n\n The relevant innovation is not necessarily having every employee away from work on Friday. It is reducing normal individual working time while maintaining service and economic sustainability.<\/p>\n\n\n\n For some businesses that can be achieved through productivity gains. For others, it may require technology, redesigned staffing or changes in operating schedules.<\/p>\n\n\n\n This question is becoming increasingly important.<\/p>\n\n\n\n Generative AI and automation can reduce the time required for drafting, summarising, information retrieval, routine analysis, customer support and administrative tasks.<\/p>\n\n\n\n If these technologies generate genuine productivity improvements, businesses will eventually face a strategic choice concerning how those gains are distributed.<\/p>\n\n\n\n Productivity gains can become higher output, greater profit, lower prices, higher wages\u2014or shorter working time.<\/p>\n\n\n\n The four-day week therefore connects directly with the debate surrounding artificial intelligence.<\/p>\n\n\n\n An organisation could theoretically use AI to automate administrative tasks and then use the saved time to increase the volume of work expected from every employee.<\/p>\n\n\n\n Another organisation could use the same technology to maintain output while reducing working hours.<\/p>\n\n\n\n Neither outcome is predetermined by the technology.<\/p>\n\n\n\n It is a management decision.<\/p>\n\n\n\n The latest UK pilot provides an eye-catching statistic: all 17 participating companies decided to continue with shorter working arrangements after the trial. The programme involved nearly 1,000 workers.<\/p>\n\n\n\n That is significant.<\/p>\n\n\n\n But a 100% continuation rate should not be interpreted as evidence that a randomly selected group of 17 UK businesses would all reach the same conclusion.<\/p>\n\n\n\n Companies participating in such programmes have already demonstrated unusual interest in experimenting with shorter working time.<\/p>\n\n\n\n The result is therefore best interpreted as evidence that organisations prepared to redesign work around a shorter week can frequently find the arrangement viable enough to continue<\/strong>.<\/p>\n\n\n\n That is still an important management finding.<\/p>\n\n\n\n It is simply a more careful claim than saying that a four-day week works everywhere.<\/p>\n\n\n\n There is another risk.<\/p>\n\n\n\n Organisations can adopt the visible element of workplace innovation without adopting the management changes that make it sustainable.<\/p>\n\n\n\n If employees are expected to produce five days of output in four days primarily by working at an exhausting intensity, the intervention may merely compress stress.<\/p>\n\n\n\n The objective should not be to transform Monday through Thursday into an unsustainable sprint.<\/p>\n\n\n\n The strongest version of the model asks a different question:<\/p>\n\n\n\n Which activities genuinely create value, and which activities are consuming employees’ time without creating equivalent organisational value?<\/strong><\/p>\n\n\n\n That is why implementation requires measurement before and during a trial.<\/p>\n\n\n\n Customer satisfaction, revenue, service quality, output, employee turnover, absence, error rates, project completion and other relevant metrics should be monitored depending on the organisation.<\/p>\n\n\n\n Otherwise, leaders may have little evidence beyond whether employees enjoy the arrangement.<\/p>\n\n\n\n The emerging research does not support either extreme position.<\/p>\n\n\n\n It is increasingly difficult to argue that reducing working time must automatically damage an organisation. Large-scale international evidence shows meaningful improvements in employee wellbeing, while several UK trials have demonstrated that service or business performance can sometimes be maintained alongside reduced hours.<\/p>\n\n\n\n At the same time, the evidence does not establish that a four-day week is a universally superior way of organising every business.<\/p>\n\n\n\n A better managerial approach is experimentation.<\/p>\n\n\n\n Organisations considering the model can first establish baseline performance, identify where working time is being lost, redesign processes, run a defined trial and compare outcomes against the baseline.<\/p>\n\n\n\n The important word is trial<\/strong>.<\/p>\n\n\n\n Workplace innovation does not have to begin with an irreversible organisation-wide policy.<\/p>\n\n\n\n For researchers, the four-day working week creates questions extending well beyond employee satisfaction.<\/p>\n\n\n\n One major issue is productivity measurement. More research is needed using objective indicators rather than relying primarily on perceptions of performance.<\/p>\n\n\n\n Sectoral differences also deserve closer attention. Does reduced working time produce different outcomes in professional services, manufacturing, healthcare, education, retail and public administration?<\/p>\n\n\n\n Long-term effects are another open question. Six-month trials provide valuable evidence, but organisations need to know whether productivity and wellbeing improvements persist after two, three or five years.<\/p>\n\n\n\n Researchers can also investigate whether the four-day week changes employee turnover, gender equality, absenteeism, innovation, organisational commitment, recruitment costs and environmental impacts.<\/p>\n\n\n\n Cross-country analysis could be especially valuable because working-time norms, labour regulation, commuting patterns and management cultures differ substantially between the UK, United States, Europe, Asia, Africa and other regions.<\/p>\n\n\n\n There is also a growing opportunity to examine the interaction between shorter working time, automation and artificial intelligence<\/strong>.<\/p>\n\n\n\n If AI substantially increases employee productivity, one of the defining management questions of the coming decade may be whether those gains produce more output\u2014or more time.<\/p>\n\n\n\n The four-day working week is no longer merely a workplace thought experiment.<\/p>\n\n\n\n Evidence from thousands of employees across multiple countries shows that meaningful reductions in working time without reduced pay can improve burnout, job satisfaction and health. British organisational experiments have also demonstrated that shorter working arrangements can coexist with stable or improved service performance in some settings.<\/p>\n\n\n\n But the most important lesson is easily missed.<\/p>\n\n\n\n A successful four-day week is not created simply by removing Friday from the calendar.<\/p>\n\n\n\n It requires organisations to reconsider meetings, workflows, technology, staffing, measurement, communication and the relationship between hours and output.<\/p>\n\n\n\n The deeper innovation is therefore not the extra day away from work.<\/p>\n\n\n\n It is redesigning work so that organisations depend less on time spent working and more on value created while working<\/strong>.<\/p>\n\n\n\n That makes the four-day week more than an HR benefit.<\/p>\n\n\n\n It makes it a serious question of business management and organisational innovation.<\/p>\n\n\n\n Fan, W., Schor, J. B., Kelly, O., & Gu, G. (2025). Work time reduction via a 4-day workweek finds improvements in workers’ well-being<\/em>. Nature Human Behaviour, 9, 2153\u20132168.<\/p>\n\n\n\n University of Cambridge. Research on the UK four-day working week trial and organisational changes used to improve productivity.<\/p>\n\n\n\n South Cambridgeshire District Council. Evidence and performance reporting from its four-day working week programme.<\/p>\n\n\n\n 4 Day Week Foundation & Boston College. UK four-day-week pilot involving 17 organisations and nearly 1,000 employees.<\/p>\n\n\n\n Is the way we organise working time ready for its next major change?<\/strong><\/p>\n\n\n\n The Journal of Business Management & Innovation (JBMI)<\/em> welcomes original empirical research, comparative studies, systematic reviews, conceptual papers and organisational case studies examining the four-day workweek, employee productivity, future-of-work strategies, human resource innovation, organisational change, workplace technology and new models of business management.<\/p>\n\n\n\n Studies comparing experiences across the United Kingdom, United States, Europe, Canada, Australia, Asia, Africa and other regions<\/strong> are encouraged, particularly where they provide measurable evidence on productivity, employee wellbeing, retention, innovation and organisational performance.<\/p>\n\n\n\n Researchers can submit manuscripts through the JBMI online submission centre.<\/p>\n","protected":false},"excerpt":{"rendered":" Few workplace ideas generate as much enthusiasm\u2014and scepticism\u2014as the four-day working week. Supporters argue that employees can accomplish the same amount of work in fewer hours when organisations eliminate unnecessary…<\/p>\n","protected":false},"author":1,"featured_media":107,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[7,9,8,10],"class_list":["post-106","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-business","tag-business-management","tag-future-of-work","tag-human-resource-management","tag-workplace-innovation"],"_links":{"self":[{"href":"https:\/\/jbmipublisher.org\/blog\/wp-json\/wp\/v2\/posts\/106","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jbmipublisher.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jbmipublisher.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jbmipublisher.org\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jbmipublisher.org\/blog\/wp-json\/wp\/v2\/comments?post=106"}],"version-history":[{"count":1,"href":"https:\/\/jbmipublisher.org\/blog\/wp-json\/wp\/v2\/posts\/106\/revisions"}],"predecessor-version":[{"id":108,"href":"https:\/\/jbmipublisher.org\/blog\/wp-json\/wp\/v2\/posts\/106\/revisions\/108"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jbmipublisher.org\/blog\/wp-json\/wp\/v2\/media\/107"}],"wp:attachment":[{"href":"https:\/\/jbmipublisher.org\/blog\/wp-json\/wp\/v2\/media?parent=106"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jbmipublisher.org\/blog\/wp-json\/wp\/v2\/categories?post=106"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jbmipublisher.org\/blog\/wp-json\/wp\/v2\/tags?post=106"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}First, What Exactly Is a Four-Day Workweek?<\/h2>\n\n\n\n
What Does the Strongest Recent Research Show?<\/h2>\n\n\n\n
But the Research Does Not Prove a Universal Productivity Increase<\/h2>\n\n\n\n
The UK Now Has an Important Real-World Case<\/h2>\n\n\n\n
The Hidden Business Case May Be Retention<\/h2>\n\n\n\n
How Do Organisations Fit Five Days of Work Into Four?<\/h2>\n\n\n\n
The Productivity Question Is Really a Management Question<\/h2>\n\n\n\n
Not Every Industry Faces the Same Economics<\/h2>\n\n\n\n
Could AI Make the Four-Day Week Easier?<\/h2>\n\n\n\n
Why \u201cAll 17 Companies Continued\u201d Needs Context<\/h2>\n\n\n\n
Four-Day Week Versus Four-Day Weekend<\/h2>\n\n\n\n
What Should Managers Take From the Evidence?<\/h2>\n\n\n\n
A Research Agenda for Business and Management Scholars<\/h2>\n\n\n\n
Conclusion<\/h2>\n\n\n\n
Sources and Further Reading<\/h2>\n\n\n\n
Call for Research<\/h2>\n\n\n\n