When Germany launched a nationwide trial of the four-day workweek in early 2024, reactions were mixed. Employers worried about productivity, economists feared slower growth, and workers weren’t sure what to expect. But after six months, many doubts disappeared. A total of 73% of companies involved said they would keep the shorter schedule permanently.

The project, run in partnership with the nonprofit Four Day Week Global, included 45 companies in industries like technology, finance, and manufacturing. They followed the “100-80-100” rule: 100% of the pay, for 80% of the time, with 100% of the expected productivity.

Many companies found they could improve efficiency by eliminating unnecessary meetings and using digital tools. One Berlin-based firm improved production by adopting automation and optimizing workflows. As a result, productivity often increased rather than decreased.

Employees also saw major benefits. About 90% reported better well-being, and 83% hoped the new schedule would stay. People reported sleeping more, spending more time with family, and feeling healthier both mentally and physically. Although not every company continued, the flexible structure allowed many to succeed. The trial’s positive results match similar efforts in countries like Spain, Portugal, and Brazil.