Mine was 33hrs, and then I slept 17hrs straight without getting up to even take a leak.
In that 33hrs, I wasn't partying, just earning an honest living:
2:30am woke up and went to work delivering product
9:30am finished worked and drove 2hrs to Sacramento, hung out with a friend of mine till it was time to get ready for a music gig
9:30pm I played a show till 1:30am
1:45am drove 2hrs back to Oakland and picked up my truck and made deliveries again
9:30am finished my route up again, dropped my truck off and drove my car back home to fall asleep for 17hrs.
In the time from 8pm, I ingested 2 lo-carb monsters, 2 2x strength diet rockstars, 2 red bulls, and 2 five hour energy drinks.
Considering I'm usually asleep at the 17hr mark, this was pushing it hardcore for me. I'm a lightweight and proud of it.