How long can you play the Sims 4 for? And when?

If nothing is going on, I can play over 10 hours a day.

I don't keep track because it doesn't matter to me. I just play whenever I feel like it, for however long (or short) a session I wish.

I've been known to play Sims 4 from 5 to 10 hours depending on which household I'm playing or what I'm building or what new world I'm changing or even what timeline game save I'm playing.
I have 6 different timeline game saves. I only play vanilla with Sims 4 cheat codes.

Usually an hour or two at night on the days I watch my grandbabies. Off days and weekends anywhere from 2-4 hours at a stretch.

I'm just getting home from work and rushing around doing 5 things at once and I misread the question, I have the ability to play for 10 hours, and have a time or two. I thought the question was how long have you played for in a single session. My bad, I need to slow down, take a breath. My co-workers practically had to tie me to my chair earlier because I wanted come home and get in on the conversation before it was done.

During the week, 2-3 hours a day depending on what time I get home from work. On the weekends 5-8 hours.

I have found that if I don't play every single day, but instead play every other day or every 2 days, I can play for longer periods. I have burned out playing every day...does this make sense? :D

I usually play a Sim day which takes an hour or two.

When I get on, which is not every day, I can easily play 9-10 hours. It is not always game play, sometimes it is looking at gallery stuff, creating sims, or building things, or changing around builds to my liking. But I considered all of those in my anxwer. I most likely won’t be on more than 3 days a week though.

It depends. Real life has a way of determining my game time. I don’t get to play everyday if I’m busy. Sometimes I play for an hour or two, sometimes I can be at it 4-5 hours if I have no other obligations.

The Sims is a favorite game of mine, but it's also a game where I can binge on it for several hours a day... at the cost of only being able to keep interest in it for a couple weeks... then I take a break for a few months. Then the cycle begins again! lol