Neurodiverse people, how much alone time do you need?

I have never met my limit for how long I can go without human contact (outside of incredibly minimal "contact" such as posting here). I never measured specifically, but I know I've gone at least a month without contacting anyone and been perfectly content. When people were going nuts after a week of lockdown, I truly did not get it. I could have done that forever. I'd prefer it.
I might be kinda broken.
- You're working as designed !
- I'm exactly the same.

I can spend most of a day with close friends but if I don't spend a few hours alone then all of a sudden my vocabulary is limited to monosyllables and everybody's too loud and annoying. Before I realized this, I thought I was just a really bad friend or something

I lived alone for basically an entire year while my wife was deployed and it was the best fucking thing ever. I was so much more productive when I was allowed to just let my process unfold organically. The house stayed clean, I got a bunch of projects done, and I actually had time for hobbies. I never once felt lonely or in need of human contact. I had a Dog and he was the perfect amount of companionship.

A looot of it. Ideally, I will participate in one social event a week on average. I can go up to like 3 times in a week but I will need more recharge time after that.
I used to be in a relationship and live with a roommate but I don't think I would be able to do that nowadays. Being alone with my hobbies in my perfectly clean and organized apartment is just pure bliss, ya know?
Sometimes I get so lost in my hobbies and hyperfixations that I feel like I could completely forget about other people. This doesn't seem healthy at all though so I actively push myself to regularly keep in touch with the few good friends that I have.

It’s never enough. I wish I could test my limits and see, but even after a week alone I still crave more time to myself.
I did have an epiphany when I realized that spending time with my partner felt the same as spending time alone (which is a good thing.) Probably because he’s a natural loner just like me, so unlike most people, he doesn’t needlessly waste my social energy on inane things like small talk.

I recently learned that Neurodiversity is an umbrella term. It‘s the concept that both Neurotypical and Neurodivergent people exist and should coexist. Meaning that no single person is actually Neurodiverse because you can‘t be both at the same time. It kind of broke my brain for a moment when I learned this so I hope this doesn‘t make anyone uncomfortable.
But to answer your question: It depends. When all my needs are met and I have a good routine I can be around people for 10 hours a day, 6 days a week easily. Sunday is usually my alone time then. Outside of my routine or when there is barely a routine, it‘s reduced to maybe 5 hours a day around people at best and I need a whole weekend for myself.

How much time is there ? 😁
To answer with more than a rhetorical : energy depletes fast with complex social interactions (=with strangers, in a formal setting, anytime something is expected of me...). After that I become too tired to process social cues, infer correct tone, understand subtext, etc. Those are the first to go. Then after a point I also become overwhelmed on a sensory level. If I have to stay there for a longer time, back in the day I used to either 1.push through (this inevitably risks creating mistakes, misunderstandings, sometimes conflict) or 2.slither away under some excuse, or even completely stealthily.
Nowadays however, I realize that this is who I am, and my struggle is legitimate, and I can only do my best. So now I just say it :
My brain is wired in a way that makes it difficult to survive long interactions, such as this one. I will have to leave now to protect my mental health. Please do not mistake my departure for something else : it is only caused by fatigue. I had a good time, even if I did not express it very outwardly. Bye Cindy
I feel like I should add I don't have a diagnostic of any kind

At least one day per week.
- Same for me. In my experience, after a week I need a day where I just play video games, read a book and relax (usually it is Saturday). If for two days I stay home and dont meet people, I feel unwell on the evening of the second day; but one day of pure regeneration is my sweet spot.
  
  Actually I do not have a problem with two days either :-D For me it gets hard after a week I would say. Love me some good alone time.

Man, that's totally true! I need at least few hors alone per day. I need this time to focus on my personal interests, otherwise I'm gonna be not regulated and with bad mood hehe.

It depends on what I do with the rest of my time. I used to do solitary contract analysis in a cubicle/my home and I needed very little alone time outside of work. Now I work as a teacher and at a bakery and need a lot of alone time, like at least an hour per day and a day per week. I don’t always get it, but I’m much saner when I do.

If I can't have several hours a day I will take them on my sleep time. If I have only 2-3 hours a day it will have a cost.

Min. 3 hours a day just to not trigger my chronic migraines. More so a sensory than a social thing, but I run a much later schedule than most because of it.

At least 2 weekdays and depending in how the Week went parts of or the hole weekend.

If I recall... I have gone on at least 7-10 days without any beyond-surface-level human interactions and fared just fine (if not better than normal), so yes

With the way my lifestyle is going, I sometimes get so much that I can't help but need social time to break up my alone time. One of the biggest reasons I love the club I'm in at community college.

I have a small circle of people I can spend time with nearly without limit, but yeah in general I avoid as much time around people as possible just because I find it a needless expenditure of energy.

I’m on disability and have no friends or family. I’m alone like 22 hours a day. I have support workers a few hours a week. That’s the only social stuff I get.