I always get a phone notification when someone in my circles makes a hangout. If I'm awake and able to join, I will. If I'm asleep, forget about it.
Don't count on seeing me in there any time during the week. My newest and current job requires that I wake up at 4:50 AM every morning from Monday to Friday. I've adjusted my schedule accordingly so that between Sunday and Thursday, there's no way I'm staying up past 8:30 PM unless my apartment is on fire or there are violent intruders trying to break in. The chances of any of those things happening are obviously slim.
Also, it's very, very clear to me that Warlight was a definite and significant contributing factor to the more recent drop in G+ activity. That's not only evident in this thread, but in other public and private conversations I've had with other regs there. It's an all right game, like its inspiration Risk, but nothing to get so obsessed over at the expense of every other important topic. Everyone here needs to take a moment and think about that for a little while if you're one of those people that could never get enough of Warlight.