1. Educators: such as teachers, professors and lecturers. Usually, the working hours of educators are regular, and most of them only need to go to work during class hours without overtime.
2. Administrative personnel: such as secretaries, administrative assistants and administrative managers. Administrative staff usually need to handle documents, telephone calls, files and other work in the office, and the working hours are relatively regular, so there is no need to work overtime.
3. Insurance salesmen: Insurance salesmen usually need to receive customers and sell insurance products in the office, with fixed working hours and no need to work overtime.
4. Librarian: Librarians need to manage the work of borrowing and returning books, reading rooms and purchasing books. Working hours are more regular, so there is no need to work overtime.
5. Government staff: such as government department staff, civil servants, etc. Government workers usually work regularly and do not need to work overtime.
It should be noted that the above types of work are only some possible types of work, which does not mean that all occupations can work nine to five without overtime. The specific working hours also depend on the occupation, industry and specific post.