If you play 15 days straight. However if you're a normal human being with a job and play 5 days a week 2 hours a day in 36 weeks you would have played 360 hours. Heck even 4 hours a day is still 3 months
Do I or do I not make a good point? 4 hours a day is still a person having some good experience in the game. In a week, you will already know how to play the game altogether.