Before any organisation can work in four days what it previously did in five, it needs to answer a question that most companies have never seriously asked: Where does the time actually go?
The four-day working week is no longer a fringe idea. Pilots across the United Kingdom, Iceland, Germany, and Portugal have produced results that are hard to dismiss—employee wellbeing up, productivity stable or improved, and retention stronger. Governments are taking notice. Trade unions are pushing for legislation. And a growing number of European companies are experimenting on their own terms.
Yet for every success story, there is a quieter failure—a company that compressed its week, watched deadlines slip, and quietly reversed course within a year. The difference between the two outcomes is rarely about motivation or culture. It is almost always about information. Specifically, the absence of it.
Before any organisation can work in four days what it previously did in five, it needs to answer a question that most companies have never seriously asked: Where does the time actually go?
The assumption hiding in plain sight
The case for the four-day week rests on a compelling argument: a sizeable portion of the standard working week is wasted on low-value activity. Unnecessary meetings, fragmented attention, redundant processes, and digital interruptions consume hours that produce little of substance. Compress the week, the theory goes, and people will naturally cut the noise and focus on what matters.
The argument is largely correct. The problem is that it is built on an assumption—that organisations already know which hours are productive and which are not. In most cases, they do not.
Time management traditionally relies on calendar data, project estimates, and self-reported logs. All three are notoriously unreliable. Calendars show scheduled time, not actual time. Estimates are optimistic by nature. And self-reported tracking is subject to memory gaps, social desirability bias, and the simple fact that most people stop logging time when work gets busy – which is precisely when the data matters most.
The result is that most companies approach the four-day week with a map drawn from guesswork. They know roughly where they want to go. They have little reliable data on where they currently are.
What time intelligence actually reveals
Automatic time tracking—the kind that runs quietly in the background, capturing how working hours are actually distributed across tasks, applications, projects, and meetings—tends to produce uncomfortable findings the first time an organisation looks at the data.
The picture that emerges is rarely flattering. Knowledge workers typically spend far less time in deep, focused work than they believe. Meetings consume a disproportionate share of the day, often with little measurable output. Context-switching—moving between tasks, tools, and conversations—creates hidden time costs that no one has formally accounted for.
For Central and Eastern European companies in particular, where longer working hours have historically been treated as a proxy for commitment, the data often reveals a paradox: more hours logged, but a smaller proportion of genuinely productive time within them. The quantity of work is high; the quality of time is low.
This is not a moral failing. It is a structural one, and it is precisely the kind of problem that time intelligence can diagnose.
Compressing the week without the data
A company that moves to a four-day week without first understanding its time patterns is attempting to optimise something it has never measured. The most common outcome is predictable: the work that previously filled five days does not disappear. It migrates, compresses into longer individual days, spills into the fifth day unofficially, or accumulates into a backlog that erodes the productivity gains the shorter week was supposed to create.
The pilots that have succeeded share a common thread. They did not simply remove a day from the calendar, instead using the transition to audit how time was spent, identify which activities could be eliminated or streamlined, and redesign working patterns around output rather than presence. The four-day week was the destination. Time data was the map.
A structural shift, not a calendar change
Europe is well-positioned to lead on the four-day week. Strong labour protections, a cultural willingness to question the equation of long hours with high performance, and a growing body of evidence from regional pilots all point in the same direction. Several EU member states are already exploring legislative frameworks that would make flexible working arrangements a default rather than a concession.
But legislation can change a calendar. It cannot, on its own, change how organisations use time. That requires an honest look at where the hours are actually going.
The four-day week is a worthy ambition. For most organisations, the path to making it work runs through a question they have been avoiding: not how many days we work, but what we do with the time we have. The companies that answer that question first will be the ones that make the shorter week stick.
Photo: Dreamstime.