I work about six hours, usually it ends up being more around seven or eight, and I live Baxter in my bathroom. I don't lay a pee pad down, he has his food and water, his crate, his favorite pillow and blanket, chew toys, and some other toys with him. So far, he has not peed or pooped in that bathroom the whole time I'm gone, and he is only five months. Four months when I was leaving him alone. If you're pup is over the age of 12 months, then he should be able to hold it for 12 hours. At least, that is what I have heard, however months old your baby is, then that is how long they should be able to hold their pee.
