UA 510 then EW 2885 at Fiumicino
Newark → Rome → Stuttgart
Timetable, Rome time
10:55UA 510 from Newark at the gate
10:10EW 2885 to Stuttgart leaves the gate
23 h 15 apart on the timetable, overnight
EW 2885 leaves 23 h 15 after UA 510 arrives on the timetable: more than half a day, so not a connection we count.