please...... In the modern society, How to distribute the working time and the rest time is everyone will ask the most basic questions when they are looking for a job. Different people have their own ideal time for a job. Working only three days with long hours will offer more time to relax that even can have enough time to take international tour. But means people cannot have normal life time and lead to impaired health. On the contrary, working five days with shorter hours cannot achieve long-distance travel with family but the daily work will be easier. From my perspective, we should discuss this problem in distinct age groups: the three days working with long hours is more suitable for young people and five days working with shorter time is more favorable for middle-aged people.