UA 510 then EW 887 at Fiumicino
Newark → Rome → Cologne
Timetable, Rome time
10:55UA 510 from Newark at the gate
09:45EW 887 to Cologne leaves the gate
22 h 50 apart on the timetable, overnight
EW 887 leaves 22 h 50 after UA 510 arrives on the timetable: more than half a day, so not a connection we count.