EW 886 then U2 2995 at Fiumicino
Cologne → Rome → Hamburg
Timetable, Rome time
19:00EW 886 from Cologne at the gate
12:00U2 2995 to Hamburg leaves the gate
17 h apart on the timetable, overnight
U2 2995 leaves 17 h after EW 886 arrives on the timetable: more than half a day, so not a connection we count.