For a quick look with liner/mascara/foundation/one eyeshadow/blush - 10 minutes.
Full face and it always includes false lashes - 30 minutes if I'm sitting and know specifically what I'm doing. An additional 15-30 minutes when I'm multi-tasking and doing other things. Lately, I've been doing it at 20 minutes... the results aren't my best when I speed like that but sometimes I can pull a miracle, ha.
On another person - it can go much quicker. 15/20 minutes... on eyes (including false lashes) and lips.