LH 247 then 4Y 900 at Frankfurt
Milan → Frankfurt am Main → Dubrovnik
Timetable, Frankfurt am Main time
12:40LH 247 from Milan at the gate
09:254Y 900 to Dubrovnik leaves the gate
20 h 45 apart on the timetable, overnight
4Y 900 leaves 20 h 45 after LH 247 arrives on the timetable: more than half a day, so not a connection we count.