With my first I was in the early stages of labor for over 20 days before my water broke and it was too dangerous for me to remain in labor. Then it was about 7 hours.
My second child was induced and I wasn't given pitocin (thank goodness!). It took about 10 hours from induction to birth.
My third was induced but I was given pitocin and I opted for an epidural. It took about 9 hours start to finish.