Usually 2-3 hours per day during the summer 🙂 but sometimes only 20 mins during school :(. It varies a lot with my motivation, the pieces I am playing, and how well I am doing. I have certainly practiced at least 5 hours in one day, but there are some days where I don’t practice at all. This inconsistent practice works better for more advanced players because the more advanced you are, the more you can make out of short practice times. I can usually make up for lost time pretty quickly by practicing harder, but when you are still a beginner, this will not do. consistent practice is a must, but only a half hour at the beginning, and later on an hour.
~Sam