W6 1045 then FR 8837 at Fiumicino
Katowice → Rome → Zagreb
Timetable, Rome time
07:55W6 1045 from Katowice at the gate
20:30FR 8837 to Zagreb leaves the gate
12 h 35 apart on the timetable
FR 8837 leaves 12 h 35 after W6 1045 arrives on the timetable: more than half a day, so not a connection we count.