Iceland's Four-Day Work Week: A Global Case Study in Success

As of 2025, around 90% of Iceland's working population has adopted a four-day work week, reducing the standard working week from 40 hours to just 36. This sweeping change is the result of persistent union-led campaigns and the remarkable success of national trials that ran from 2015 to 2019, involving over 2,500 participants.

Before this shift, many Icelanders reported poor work-life balance, high levels of stress, and dissatisfaction in their jobs. But following the implementation of the four-day work week, studies showed a significant increase in job satisfaction and a reduction in stress, clear evidence of the positive effects of reduced working hours.

Naturally, sceptics raised concerns, such as would fewer hours mean lower productivity and weaker economic performance? But the results spoke for themselves. By 2023, Iceland's economy was growing faster than most European countries, with a 5% expansion in GDP, compared to a pre-implementation average of just 2% between 2006 and 2015. Unemployment also dropped, ranking among the lowest in Europe.

Iceland's success has inspired other countries to trial their own versions of the four-day week. For example, Unilever in New Zealand cut employee hours by 20% without reducing pay, aiming to boost well-being and productivity. These global trials often point to the same benefits, improved work-life balance, better mental and physical health, and greater focus and alertness among employees.

Yet, success isn't universal, implementation matters. In 2023, Belgium became the first EU country to legislate a four-day work week. However, employees were still required to work the same number of hours over fewer days. This led to limited adoption, with fewer than 1% of Belgians opting in, highlighting that compressing hours rather than reducing them misses the core benefits.

It's important to note that Iceland's triumph may not be easily replicated everywhere. With a population of just 404,000, smaller than that of Liverpool, its relatively small, agile workforce and specific industrial landscape likely contributed to the smooth transition. Moreover, Icelandic culture places a high value on well-being and community, which may have made the idea of a shorter week more culturally acceptable.

Still, Iceland has proven that a shorter working week is not just possible, it can be better for both the workers and the economy. As more countries observe these outcomes, the global workforce may be inching closer to a new normal where less time at work doesn't mean getting less done.