In terms of a daily schedule registered nurses can often be found working 5-8 hour days, 4-10 hour days or 3-12 hour days per week. RN’s that work 8 or 10 hour days typically work about 40 hours or so per week, however nurses that work 12 hour days may end up working around 36 hours per week. In either case both the 36 hour and 40 hour work weeks are generally considered full-time work for registered nurses.