EW 7886 then U2 8324 at Fiumicino
Hamburg → Rome → London Gatwick
Timetable, Rome time
13:30EW 7886 from Hamburg at the gate
11:20U2 8324 to London Gatwick leaves the gate
21 h 50 apart on the timetable, overnight
U2 8324 leaves 21 h 50 after EW 7886 arrives on the timetable: more than half a day, so not a connection we count.