My daughter's 3 years old and my son 17 months. With both mine we "aimed" for a 7pm bedtime, but they've both naturally shifted this themselves, so are in bed by around 6/6.15pm and asleep by 6.45. They wake around 6/6.30am, but are usually happy to play in their room until 7am. My son has a daytime nap of around 2 hours in the middle of the day and occasionally my daughter will have one too, but not every day.
I think some of the reason for the different bedtimes is genetic - I've never been someone who can stay up all that late (still like to be in bed by 9.30pm!) and prefer to get up early. I'd hate to have my kids up until the sort of time I go to bed - I like to have some child-free time in the evening.