FR 9608 then FR 8837 at Fiumicino
Manchester → Rome → Zagreb
Timetable, Rome time
21:20FR 9608 from Manchester at the gate
19:00FR 8837 to Zagreb leaves the gate
21 h 40 apart on the timetable, overnight
FR 8837 leaves 21 h 40 after FR 9608 arrives on the timetable: more than half a day, so not a connection we count.