I hate baths and haven't had one since September.
But then that could be because I had my bathroom ripped out in September and had a new one fitted and did away with the bath opting for a shower instead (no room for a bath as well) I have always preferred a shower to a bath as I hate laying in my own dirty water in a bath.
To answer the question, 5 minutes for a shower and 5 to shave 2-3 times a week