Our surgery rotation is 12 weeks long and is divided into chunks at the VA, on various services at our home institution, and the hospital's trauma service.
Overall: alarm set for 0345-0400, hospital by 0430, scutwork and/or prerounds until ~0530 or whenever resident rounds would be, then lecture or M&M or sometimes nothing, then OR cases or clinic or floor work from 0730-1730 or earlier if things finished up ahead of time. If a case runs late and skin isn't closed until it's almost dark out, then that's just how it goes.
Sometimes, on some services, you could "sleep in" until 0500-0530 or so. And sometimes, you'd luck out and end up going home by around 1600.
Call on the trauma service was overnight, generally turning into 26-30 hour stays, and was q4-q6 for several weeks depending on the group / time of year / etc.
I studied between cases and in down time here and there. Light studying on days off. Never studied when I got home from the hospital.
I was absolutely miserable on that rotation. I had classmates who lived and breathed surgery. Whatever floats your boat, really. I think the "only go into medicine if you can't see yourself doing anything else" line is a little exaggerated, but "only go into surgery if you can't see yourself doing anything else in medicine" is abso****inglutely spot on.