The Case for a Four-Day Week

The five-day working week is not a law of nature. It is an invention, barely a century old, designed for factories that no longer dominate our economy. Yet we still organize our lives around it as if it were sacred. It is time to ask whether four days might serve us better.

The evidence is no longer thin. In large trials across Britain, Iceland, and Japan, companies that moved to a four-day week reported that productivity stayed the same — and in many cases rose. Workers were not magically faster; they were better rested, meetings became shorter, and pointless tasks quietly disappeared. In the largest British trial, sick days fell by nearly two-thirds and resignations dropped as well — companies kept their people. Revenue, the figure opponents watch most closely, held steady.

Opponents raise fair concerns. Hospitals, restaurants, and transport cannot simply close for a day; customer coverage matters. Some workers also report that compressing five days of work into four makes each day more intense. These are real problems — but they are problems of design, not arguments for doing nothing. Staggered schedules and genuine reductions in workload, rather than compression, answer most of them.

What the trials measure best, however, is well-being. Burnout fell sharply. Parents gained a day with their children; older workers stayed in jobs longer. A society that is richer in time is not a poorer society. The five-day week was a victory of the last century. The four-day week could be the victory of this one.