My DD was always a late to bed child. Until she totally dropped her day sleep at about 2 years 9 months. Now she is in bed at 7 and asleep within 10 mins!
Ditto, recently something just clicked with DD1 and now she eats earlier and hoes to bed at about 7pm. This was a few months after she dropped the day sleep. Gee those few months between the 2 events were fun!