I love drinking in the day, at least on the weekends. No way can I drink this stuff before work, I need all the brain power I can get. I need to get things done quickly, not relax and socialize. But on the weekends I usually drink around noon, whether I'm laying around all day, visiting family, or running errands. Though I do hate the fact that the sun bothers my eyes, makes me feel like I'm drunk. I rarely get tired from kava. A lot of times it gives me energy and I want to get things done, like clean the apartment, or run errands I've been avoiding for a while.
Speaking of musical instruments, I also notice that when I play piano when drinking, I make a lot less mistakes, as my hands and shoulders are naturally more relaxed. Unfortunately, my patience for practice goes way down.
Workdays I usually drink around 8pm, 2-3 times a week. This is more to just keep some kava in my system then to feel any major effects. Unless I really have nothing to do one night, then I'll go overboard just to kill the night.