LH 1817 then DE 1608 at Munich
Barcelona → Munich → Kos
Timetable, Munich time
09:30LH 1817 from Barcelona at the gate
05:50DE 1608 to Kos leaves the gate
20 h 20 apart on the timetable, overnight
DE 1608 leaves 20 h 20 after LH 1817 arrives on the timetable: more than half a day, so not a connection we count.