It's very hard to say. I spend less time on here than I used to as I am now unable to access the site from work the normal way or stealth. Damn it. I suppose I don't really have time there anymore though so it's probably okay.
As for nights, it's dependant on my school schedule and what we're up to. I make a point to be on for a while every day though even if I'm just reading for 30-40 minutes and not posting.