Here is a an article regarding a D1 baseball player. I would guess that other divisions aren't much different. This was posted on this site last year and I found it interesting.
In answering the OP's question - the link JLC posted is a good indication of what to expect. My son's experience was similar. I've always maintained it's not just one full time job, but actually two - one as a student and one as an athlete.
Though my son was not a pitcher (played 1B), that schedule was about what he had at JuCo and D2. Each day started a 5 am and he did not go to bed until after 10 pm. Spring was worse with an average of 4 games per weekend (a doubleheader each day) and at least one game during the week. On home weekends, he was at the field by 8 am for a doubleheader starting at noon. Field prep first, then warming up for the games. 20 minute break between each game. Last game over around 7 pm, then an hour of "clean up" before being heading to his apartment or dorm. Dining hall didn't open 'til 10 am on weekends so he was on his own for breakfast - somewhere along the line no one mentioned that. Despite all that, he really loved the game and would do it again in a heart beat.