Let's see, I started playing roughly 2:41am, went to bed at 3am, woke up at 12pm, and sent the message saying i beat the game abit before 5pm. Ofc, I did still have breakfast etc and checked my email before actually playing the game.
So, my time would probably be roughly 14 hours 15 minutes, assuming the clock would still count the time I was asleep, eating breakfast, etc.