When are there players usually on the chat? I seem to be missing everyone when I finally get the chance to log in.

Luci regularly runs addies at 15:00 -05:00 on Fridays; Diana will run if people are available around 13:00 -05:00 -ish on Saturdays; I find that most days people are on around 20:00 -05:00 most days of the week. When I run addies I will generally post in the forum to alert people that there is stuff going on, same with the discord channel.