U2 2123 then GQ 821 at Fiumicino
Manchester → Rome → Athens
Timetable, Rome time
16:00U2 2123 from Manchester at the gate
13:00GQ 821 to Athens leaves the gate
21 h apart on the timetable, overnight
GQ 821 leaves 21 h after U2 2123 arrives on the timetable: more than half a day, so not a connection we count.