My corn comes out nearly every night when not digesting/shedding and he'll be out usually for an hour, sometimes longer occasionally he'll want to go back sooner. He was out for two hours one night last week because he hid in my hair when I tried to get him back in his viv :lol: Ended up feeding my geckos while he re-styled my hair :lol:
But it'll be different for every snake and I personally think it depends on their homes too. When my corn was in his exoterra faunarium, he basically never wanted to be in there and would be out for several hours and STILL make a fuss when I tried to get him back in :lol:
The hogs come out whenever i have time and theyre not full of food! Probably get them out twice a week, certainly at least once a week just to have a proper check on em and keep them settled and easy to handle.