Twice. I am not a healthy human so I try and play on the cleaner side of life because getting sick is kinda easy and sucks a little extra like that.
Environmental guilt keeps them at seven minutes each average (yeah, I timed them. I don't even remember why, but that guilt seems viable enough)
Occasionally when the youtube hits just right the night time shower can be 15 minutes. Or it is complex grooming day and not just a shave or something.