Depends on your program and rotation. Some programs are more rigorous, but may still have more laid-back rotations.
My average day is 7:30-4:30 pm, plus or minus 30 minutes for starting and ending. Rarely there past 5 pm, and if I am, it is because I want to stay a little bit later to study in the comfort of the reading room or read some additional studies for my own learning.
Noon conference is almost everyday, although I choose which ones I go to if I feel like it contributes to my learning. Otherwise, I enjoy my lunch outside or with some co-residents. We do have noon conference attendance requirements, so I keep that in mind when choosing which conferences to attend.
I am a first year, so no weekend shifts yet. I spend that time studying in the morning as I am the most awake and attentive. If my wife is off, I try to spend some time with her outside of the house, share a meal, talk about our past week, etc.