I go on whenever I feel like it, since school is over now, and I have currently nothing to do. But in July I will be more busy, so I will have a more set time.
Mornings, I come in sometimes in the afternoon when I'm not doing something else, and at night. I come in at night for two-three hours. I'd say I'm most active in the morning. Which is around 7-11 AM.
I usually come here when I get back from school, like now, it is 2 p.m for me. And also in the night if there is something interesting around the forums or friends to talk.
I'm the same plasmaman. I used to just come on in the afternoons when i first joined, then went inactive for over a year. Now t's an obsession lulz. If i'm not online i usually write back to people on my phone.