Many people say that they are working too many hours. They don't have enough time to relax or to stay with their family. Work hours are different from one country to another. In France , people spend about 1,646 hours a year at work. In Japan, however, people work about 2,159 hours a year. That means( 意味着 ) a Japanese worker works 513 more hours a year than a French worker. Why do people work so many hours? Some people work extra hours because they want to make more money. However, many companies( 公司 ) don't pay overtime( 加班工资 ). Their workers don't get more money for more work. Some people think it's their duty( 职责 ) to work more hours. Some are afraid of losing their jobs if they don't work more hours. Many people say that their vacations are too short. In France, people get five weeks of paid vacation a year. In Germany, they get four to six weeks , and in the United States, two weeks. One study shows fewer than( 少于 ) half of workers used all their vacation days. In Great Britain, there is a saying, "All work and no play makes Jack a dull ( 迟钝的 ) boy." If that is true, there must be a lot of dull people in the world.