It's Five O'clock Somewhere, right?

Ethan has been reading a clock since he could tell me what digit each number was, as in, "when the big hand points to the 6 we are leaving." He found this book and now knows really how the clock works. Simple stuff, so simple that I could have taught him this the first week of class this year but choose to hold out for selfish reasons. Now, he seems to think he can't go to bed before 9pm! This, is when learning to read so well does not work in my favor.