This article explores the history of the Japanese workweek, factors influencing its length, current trends in the Japanese workplace, and the pros and cons of a four-day workweek. It also provides examples of companies offering their employees a four-day workweek either permanently or seasonally. The introduction of a shorter workweek has had both positive and negative impacts on Japan’s economy and society, with employers benefiting from reduced costs associated with employee salaries while employees benefit from increased flexibility when it comes to managing personal commitments outside of work.