Other than Labor Day, there really aren't any holidays commonly taken off by school children. Some children who go to schools that follow a year-long calendar could possible be off if it is their track's time for a break. Children of the Jewish faith often do not attend on Rosh Hashanah (which is on Sept. 15 at sundown through Sept. 16) or Yom Kippur (Sept. 24-25); however, it is extremely unlikely that those children will be at Disney on those days.