function getLengthInSeconds() { $eventStart = $this->getStart(); $eventEnd = $this->getEnd(); $days = Calc::dateDiff($eventStart->getDay(), $eventStart->getMonth(), $eventStart->getYear(), $eventEnd->getDay(), $eventEnd->getMonth(), $eventEnd->getYear()); $hours = $eventEnd->getHour() - $eventStart->getHour(); $minutes = $eventEnd->getMinute() - $eventStart->getMinute(); return $days * 86400 + $hours * 3600 + $minutes * 60; }