U2 5079 then W4 6047 at Fiumicino
Berlin → Rome → Porto
Timetable, Rome time
19:55U2 5079 from Berlin at the gate
11:50W4 6047 to Porto leaves the gate
15 h 55 apart on the timetable, overnight
W4 6047 leaves 15 h 55 after U2 5079 arrives on the timetable: more than half a day, so not a connection we count.