I have two part time jobs right now. One is working in a state department as an office assistant for just 10 hours a week. The other one, which I enjoy much much more, is a paid internship at an archives, where I run around doing archivist stuff. I have reference shifts where I work with the public about once a week and the rest of the 20 hours a week I am processing historical records, pulling or refiling records, writing finding aids, accessioning new collections, encoding finding aids to be put online, and lots of other fun stuff.
I work five days a week, usually 8:30-5:00, but I leave earlier two days a week to attend night classes.