LH 1189 then 4Y 900 at Frankfurt
Zurich → Frankfurt am Main → Dubrovnik
Timetable, Frankfurt am Main time
14:05LH 1189 from Zurich at the gate
09:254Y 900 to Dubrovnik leaves the gate
19 h 20 apart on the timetable, overnight
4Y 900 leaves 19 h 20 after LH 1189 arrives on the timetable: more than half a day, so not a connection we count.