We had the same problem with preschool. They keep nap until 4-5 yo (it was not negotiable), so we had to deal with shorter nights. Our bt was 9 pm anyway, no matter what, and in the end DS learned not to sleep during nap time at preschool. At 4 yo he had to wait 1.5 h without sleeping... And also that rest time had an impact on his sleep, it was stealing 30-60 mins of night sleep even though he did not nap! It was not right to me, but this was the rule, and here kids go to bed later, and many keep nap until 5-6 yo.
Maybe you can anticipate bt and hope that she learn not to sleep in the day, if she has enough sleep at night.