I did it last year for first time. Day hike starting at 3:00 am. Overall time (breaks included) 9:30 hs to reach the summit. 45 years old in good condition. Reached Trail Camp in 4 hs,long break there, 2 hs hiking the switchbacks but from Trail Crest to summit I felt the altitude with nausea but no headaches and took me a little more than 2:30 hs to cover that distance.
I'm going for my second summit at the end of july.