How long did it take you to finish act 2?

I have yet to complete some quest but have discovered all map(playing blind, just checked now if there were more area to see) finished the game in 27 hours( I think I lost 4-5 hours just platforming the sand zone and cold zone, still sweating). What's the average time you finished the game first time? Didn't felt very long tbh, hope I have some more playtime til 100%