OS 604 then FR 947 at Vienna
Zagreb → Vienna → Krakow
Timetable, Vienna time
11:55OS 604 from Zagreb at the gate
08:30FR 947 to Krakow leaves the gate
20 h 35 apart on the timetable, overnight
FR 947 leaves 20 h 35 after OS 604 arrives on the timetable: more than half a day, so not a connection we count.