Answer:
Registered Nurses are able to work a variety of schedules - some prefer to work three 12 hour shifts per week 7:00 to 7:00. Some work four or five 8 to 10 hour shifts 7AM to 3PM, 3PM to 11PM, 11PM to 7AM.
RN's who work in a doctors office usually work 9 to 5 Monday through Friday. Some work "on-call" as needed, while some do administrative work in a hospital 8AM to 5PM. RN's who work as a school nurse work Monday through Friday during school hours.