Well, that's an interesting question.
I usually have three orgasm's a day
so I can't give a answer as to the best time for me.
Generally speaking, my first wad of the day
comes by myself while I am showering for work,
what is notable about that, is that I generally shoot
my spunk into my wife's cream rinse. That way I know she's
walking around all day at work with spumone hair.
My second wad of the day is usually at 5pm when I get home
from work, cause I better be getting head from the minute I
walk thru the door or momma's gonna get whomped.
Plus, she just loves cooking my dinner and cleaning the house with dried love nuggets in her hair.
Third wad of the night is usually around 11pm when I stagger
to bed and then pound her mercilessly with my whiskey dick
until I've had enough.
Not really sure what time of the day she prefers,
didn't ask. Don't care.
Hope this helps.