Work, as most organisations have known it, is quietly being redefined. Remote work challenged the way we work and hybrid challenged the way we utilise space. Now as normality is just beginning to settle with acceptance around the new ways we work, the four-day work week is questioning how long we should work in the first place.
It might feel like the four-day week is a fringe idea debated on LinkedIn threads by corporate linguists and action-shy thought leaders, however you’d be wrong in that understandable assumption. The four-day week is infact being trialled at scale, with measurable results, particularly here in the UK, just rather quietly. And importantly, it is not being driven by necessity (looking at you remote work and covid), it is surprisingly being driven by outcome.
For decades, time has been treated as a proxy for productivity. More hours, more value. Simple enough. Except it has never quite worked that cleanly in practice.
In the same way that the 1930’s tussled with altering the then normal six-day work week, today the four-day work week is now forcing us again to consider a puzzling question…
If the same output can be achieved in less time, what exactly are we doing with that extra day?
What is the Four Day Work Week?
The four-day work week sounds straightforward, yet in reality, it’s often misunderstood.
The model most organisations refer to is the 100:80:100 rule, which in simple terms equates to 100 percent pay, 80 percent time and 100 percent output. In other words, employees work fewer hours without a reduction in salary, while maintaining performance expectations.
This is where confusion tends to creep in. A four-day work week is not the same as compressing five days into four longer ones. That simply concentrates the same workload into fewer days and calls it progress. Unsurprisingly, that approach tends to wear thin fairly quickly, with longer working hours actually diminishing productivity, alongside the added risks of stress, depression, anxiety and a long miserable list of things to avoid in life.
A genuine four-day model reduces total working time and it forces a rethink in the way we work. Meetings are questioned, processes are tightened and work that does not add value becomes harder to justify.
It’s less about giving people a day off and more about asking why that day was needed in the first place. As importantly outlined by the leading voice for this framework, 4 Day Week Global, the focus is on maintaining output while reducing time, not stretching work across fewer days.
The Data: What Large-Scale Trials Show
As you can probably imagine, the usual “sunshine and rainbows” based conversation around the four-day work week tends to get dismissed quite quickly; with the common excuses being it’s unviable and would lead to output drops or that everyone would just login on Friday anyway… Except, when you introduce data into the conversation it becomes less about how unviable it sounds and more about how viable it can be.
Best example, the fairly recent UK four-day work week trial…
This trial, one of the largest of its kind, put this new working week into practice across dozens of organisations. Not startups with beanbags and vague job roles that would make an old age pensioner grimace, but proper businesses with targets, clients and the usual operational friction that you’d expect. You know, the kind of environment where bad ideas tend to get exposed quickly.
The results from this trial were not subtle in the slightest. With the likes of stress, burnout and sick days practically falling off a cliff. All in all, the results were clear, broad and impossible to ignore:
- Year-on-year, revenues rose by around 35% compared to the previous year
- 92% of participating organisations continued with the four-day week after the trial
- 39% of employees reported reduced stress levels
- 71% of employees reported lower levels of burnout
- 57% decrease in staff turnover
- 65% reduction in sick days
So, it’s fair to say the anticipated trade-offs never quite materialised. Output didn’t crumble, businesses did not grind to a halt and the world as we know it didn’t end.
And before you say this is just one isolated study, other trials show similar findings too. The 2023 Australian trial reported a 64% reduction in burnout, alongside a 6% drop in turnover and a 44% decrease in sick days. The global long-term pilot followed a similar trajectory, with revenue increasing by 15%, burnout falling by 69%, and turnover reducing by 32%. Even earlier trials across the US and Ireland showed revenue rising by 14% and burnout dropping by 67%.
So considering all that, you might (hopefully) be noticing that when working hours were reduced, wherever or whatever the organisation was, the majority of organisations simply carried on and you’d be correct in that observation. The only thing arguably abandoned by this change in the way of working were the things that were not doing much in the first place, or worse yet were contributing to decreasing productivity, revenue and employee wellbeing.
Fundamentally, all you need to know is the data does exist in abundance and it supports four-day working weeks in full.
Productivity: Why Less Hours Can Produce More Output
Hindsight aside, fewer hours for the same output does sound like a slightly suspicious deal. It’s not surprising people react as if it’s some poorly thought through idea presented by a hopeful and passionate intern.
The assumption is straightforward; less time should mean less work gets done. That would be true if most organisations were operating at full efficiency to begin with, but alas, they’re not.
A typical working week is not short on activity, instead it’s arguably short on focus. Time is absorbed by meetings that drift, tasks that duplicate and work that exists largely because no one has stopped to question it. When five days are available, there is very little pressure to address any of this and we haven’t even touched on presenteeism and the fairly common policy of finishing early on Fridays. All in all, when scrutinizing the five-day work week and it’s efficiency, it’s hard to disagree that the cracks begin to show.
Obviously, the alternative at this point is to reduce that week to four days and resultingly in most cases the tolerance for inefficiency should disappear.
Meetings become shorter or disappear altogether when unnecessary. Priorities become clearer because they have to be. Decisions are made faster, partly because there is less room to delay them.
It’s a slightly uncomfortable conclusion, but the five-day work week has never been a particularly strong framework for efficiency. It’s simply been the default; at least since we last questioned the work week (1930’s for those who aren’t experts on workplace policy history).
So the idea that less time leads to less output only really holds if time was being used well to begin with and for many organisations that assumption does not quite stand up.
Talent Strategy: A Competitive Advantage
As said, when the four-day work week is usually mentioned without data, it’s often framed as a wellbeing initiative. In practice, it functions just as effectively as a talent strategy, and arguably a more immediate one.
In a market where most organisations are still competing on salary, office perks and let’s not forget now normalised work from home policies, offering time back tends to cut through fairly quickly. Unsurprisingly, organisations that adopted the model saw a noticeable increase in applications, in some cases by more than 120%.
To be honest, It’s not difficult to see why. Reduced working time without reduced pay is a tangible shift, not just line in a job description that’s rarely going to be realised. It signals a different approach to work, and more importantly, a willingness to act on it. Something that derivative corporate “rebrands” fail to capture, yet industry seems obsessed with.
Retention follows a similar pattern. If people are given a working model that is demonstrably better, they are less inclined to leave it. Staff turnover has been seen to drop from approximately 40% to 60%, which, for most organisations, is the sort of improvement usually chased through far more expensive means.
There is also a secondary effect. A more stable workforce tends to perform better. Knowledge is retained, teams remain consistent and less time is spent onboarding replacements or covering gaps.
For organisations still trying to solve hiring and retention through incremental changes, this presents a slightly awkward reality. The competitive advantage may not come from offering more, but from asking for less.
The Future: Trend or Just the Next Logical Step?
At this point you’re likely thinking the four-day work week is starting to feel less like a trend and more like an inevitability that has not quite been fully accepted yet.
Adoption is still uneven and understandably so. Some industries rely on fixed coverage, physical presence or simply can’t compress demand into fewer days without rethinking their entire operating model. But as seen with hybrid work, for a large portion of the working world, the barriers are less practical and more cultural.
The five-day work week has been the default for so long that it rarely gets questioned. Not because it’s optimal, but because it’s familiar. It works well enough and “well enough” tends to stick around longer than it should if we’re being honest.
That said, the direction of travel is fairly clear. Trials are expanding, results are consistent and 78% of employers currently expect the four-day week in place by 2030. Ultimately, flexibility is no longer seen as a perk, it is now expected thanks to the recent workplace revolution. The four-day work week simply takes that expectation one step further and if that isn’t being ahead of the market, I don’t know what is…
So, the question is not really whether the four-day work week works. The data has made a fairly convincing case that it can; the more relevant question is whether organisations are willing to challenge a system that has gone largely unquestioned for a century.
Me personally? I wouldn’t bet on organisations rushing to make that shift, but if I were a betting man, my money would be on employees pushing them there none the less.
