12 hour shifts are one of the reasons I got into this field. I am currently an AUA and I work Thursday, Friday, Saturday, Sunday 7pm-7am. This is the greatest schedule ever, and I get a little overtime ever week. It's also the least hours per week I have worked in 10 years. If they took away 12 hour shifts, I would be pressured to leave the field. Also I am in an ASN program, it gets a little hard during the semester. Still 16 hour shifts Monday through Saturday was the norm during the industrial revolution until labor laws were put in place. Previous positions I have held 8 hour shifts in an industrial setting required 12 days on 2 off as a permenant schedule. A salaried position requiring 10 hour days 6 times a week plus 24/7 pager. Oilfield positions around here are all 7 days in a row 12-16 hours on then 7 days off. Maybe I am just used to working a lot, but 3-12s sounds like part time to me.