Countries worldwide are increasingly adopting a four-day work week due to the benefits it brings for both employees and employers. Results from various trial programs globally have shown promising outcomes.

Now let's discuss the list of countries having 4 days of working

In France, while there is no legal mandate for a four-day workweek, many businesses are adopting this practice. This trend is influenced by the country's longstanding law, implemented in 2000, which established a 35-hour workweek and is unlikely to be changed.

Following the success of trial programs in other countries, Portugal has decided to experiment with a four-day work week. In a government-funded pilot, 39 private companies have joined, following the "100:80:100 model" - 100% pay for 80% of the time while committing to maintaining at least 100% productivity.

In Ireland, the Four Day Week Ireland campaign has initiated a six-month pilot campaign, aiming to promote a gradual and well-managed transition to a shorter working week for all workers in both private and public sectors.

The Netherlands has had a short average workweek since the early 1990s, and companies like Dell and Canon have implemented 32-hour options for workers.

In the United States, various state and local governments, as well as individual companies like Basecamp, Kickstarter, and Boulder, CO, have experimented with a four-day workweek.

Spain has introduced a pilot program for a four-day work week, committing to a 32-hour work week for three years without reducing workers' compensation.