A. Eight-hour Day. Eight hours shall constitute a day's work for all persons employed by the county unless otherwise provided by the department rules adopted. Jul 10, 2013 Americans work an average of 38 hours a week, even after factoring in part-time jobs. Here are 10 industrialized nations where workers have. Feb 1, 2017 People shouldn't be working any more than 39 hours a week if they want to protect their wellbeing, a new study finds. Feb 2, 2017 Putting in long hours at the office seems normal with projects to finish, paperwork to complete and those numbers to compile for the monthly.