public function __construct($dayOfWeek = null, $startHour = null, $startMinute = null, $endHour = null, $endMinute = null)
{
$this->dayOfWeek = $dayOfWeek;
$this->startHour = $startHour;
$this->startMinute = $startMinute;
$this->endHour = $endHour;
$this->endMinute = $endMinute;
}