When DH is home, I will cook dinner for the kids at about 5ish to eat at 5.30ish. Depending on if it will be ok reheated (like pasta, or soups...) and if it's something we will be eating (occaisionally I will make something for the kids we don't eat like sausages, home made nuggets, crumbed fish fillets...), I will cook for dh and I too at this time, if not then I cook for us after the kids are asleep, usually about 7.30ish.
If DH is working, then I will cook and eat with the kids at 5.30, then normal bath, bed time routines.
My DS is in the process of dropping a sleep at the moment (most days he still sleeps 2 times a day, but only short cat naps). If he doesn't seem tired in the morning before 9am, then he gets to stay up til about midday, then he'll sleep about 2hrs. If he has two sleeps it has to be before 9am, then before 2pm or he won't go down at 6.30/7ish like he usually does.