Ours had a yearly schedule that was 10 months long in total, and we paid a yearly tuition/rate depending on how many hours we used on a monthly basis. Changing hours was pretty simple, extra or fewer hours were prorated. ((They had a morning only, morning and lunch, lunch and afternoon, afternoon only, and full day rates.))
M-F hours of 9am - 3pm (dollar a minute for late pickup)
1 week Parent Teacher Conferences in fall and spring
Thanksgiving (wed/thurs/fri) & 2 mondays I forget when (aka 1 week)
3 weeks over xmas
4 weeks in the summer
Montessori program
Because it was a yearly schedule with very well outlined dates (and we only paid for 10mo), it was super easy to find supplemental care for the dates that they were closed.
She worked those hours (and had for years) because her kids got out of school at 330. When her kids grew up, she kept those hours, because they worked for her. They were exactly what I, and 12 other families, needed. (Provider to child ratio 1:4, as she had 2 assistants. 1 on 1 day a week, and the other for 4 days a week. Not all families were full time, all the time... so there were only ever 8 kids at a time. The 3rd provider worked 1 day a week and covered any sick days for the other 2).
No matter WHAT your hours or schedule are (from 6-6, 9-3, swingshift, graveyard, etc.... 365, school schedule, 10mo, drop off, etc. ) they will be EXACTLY what certain families need.