7:30 bedtime?!

I don't understand this suggestion of putting baby to bed at 7:30-8pm. What time do people get up with their babies in the morning?! Now, to be fair I'm a serious owl, regularly going to bed at midnight or later, calling 7pm early to eat dinner, 9am is early in the morning to me (my muffin princess regularly gets up between 8 and 10, she's also six months old), but still! Do they get up at six? What do they do all morning? All day? I can't fathom.