I have worked acute care 12 out of my 14 years nursing and I have worked both 8 and 12 hour shifts and BY FAR choose the 12 hour shifts! Yes, the 8 hours go by wayyyy faster, but I feel as though I get more done in 12....not to mention getting my entire work week outta the way in 3 days compared to 5!! At our little rural hospital, we "full-timers" work block-schedules......3 on, 1 off, 3 on, 7 off!!!! SWEEEEEEEEEEEET!