Overnight if I'm tired or busy.... but I can cheat since I have a dish machine I can throw most my dirty dishes in
Living in Florida, I usually wash them and clean the kitchen when the meal is done. I never leave them overnight - even after hosting a party. Nor do I leave garbage in the house overnight. I don't like roaches and ants or the insecticide required to keep them out of the house because of feeding them. There still is the occasional cockroach that will drive me nuts. Once they get in your house, it's really hard to get rid of them.
I find it best to wash them immediately after use unless I’m hosting guests. Doing this keep me not let them pile up and become a thing.
I usually clean them the next day, but when I get busy I've left them for weeks haha it happens, and I don't get many guests. I always clean for guests.
I don't know if I have ever found my upper limit. Depends on how busy I am, I guess. I don't keep close track of it, but I try to keep the health department out of the picture.
It really isn't that bad
Until I get back from my appointment elsewhere
I do them after eating. Usually the pot/pan before while it's hot.
I live alone and wash them as I use them. it's just easier.
I can't stand to have even one dirty dish in the sink.
I wash them in the morning after breakfast. Dry them and put them away.
If any get dirtied during the day when I see them they get washed.
After dinner, I wash them again.
I know this is more than a little obsessive, but it could be something far worse. lol
Mostly I want to wash immediately, so I try not to use many.
I will not leave them in the sink, If I don't get to them right away, my roommate will.
...only minutes, if possible, in culinary school, chefs are drilled to "clean as you go" -- start clean, end clean. But, the general rule is ...never go to bed with anything in the kitchen needing cleaned. EVER.