S.D.
Much research has shown that the best bedtime for a child under the age of 2 is between 6:30 and 8:00. Not that there aren't exceptions, but if you are having trouble, it's worth exploring the possibility that you have kinds screwing with her body clock by keeping her up so late. Try putting her down 10 minutes earlier each night or every-other night for a week or two and see if it changes her sleep habits.