FixedScheduleViolationBuilder::isDateTimeHoliday

private function isDateTimeHoliday(DateTime $dateTime)
{
	$calendar = $this->getCalendar($this->getSchedule()->getCalendarId(), $dateTime->format('Y'));
	if ($calendar && !empty($calendar->obtainFinalExclusions()[$dateTime->format('Y')]))
	{
		return isset($calendar->obtainFinalExclusions()[$dateTime->format('Y')][$dateTime->format('n')][$dateTime->format('j')]);
	}
	return false;
}