OS 574 then FR 1565 at Vienna
Napoli → Vienna → Catania
Timetable, Vienna time
16:30OS 574 from Napoli at the gate
07:45FR 1565 to Catania leaves the gate
15 h 15 apart on the timetable, overnight
FR 1565 leaves 15 h 15 after OS 574 arrives on the timetable: more than half a day, so not a connection we count.