D.R.
You didn't say how long this has been her routine, but if it has only been a couple weeks that she needs to get up so early, she may just need time to learn the pattern is early to bed, early to rise. People have all different natural sleep patterns, and she may be more of a night owl, but if it is a new routine than she should adjust. What I have learned by doing it the wrong way is that consistency is key. At least she is talking and not screaming for an hour!