Hey Somnia, why don't you just skip the gym on days that you play an east coaster? Or go to the gym after you play? May help things out some. I don't know how much of a nazi you are about your gym schedule but I figure I'd throw it out there.
I can do that and it isn't a problem at all as long as I have an advance idea of who and when I play (aka: we make a set time and date and the person shows up lol). Which would put me home at 9PM CST not 1030PM CST.