This article provides an overview of the Japanese working culture, which is known for its long hours and dedication to work. It discusses the history of Japanese working hours, how companies handle Saturdays, whether or not Japanese people have to work on Saturdays, benefits of working on Saturday, commonality of working on Saturday, restrictions on working hours in Japan, and the impact of working on Saturday. Ultimately, it depends largely upon what type of job you have and what kind of agreement you have with your employer regarding working hours.