OS 624 then FR 182 at Vienna
Dubrovnik → Vienna → Sofia
Timetable, Vienna time
14:20OS 624 from Dubrovnik at the gate
11:40FR 182 to Sofia leaves the gate
21 h 20 apart on the timetable, overnight
FR 182 leaves 21 h 20 after OS 624 arrives on the timetable: more than half a day, so not a connection we count.