U2 6104 then UA 178 at Fiumicino
Munich → Rome → Denver
Timetable, Rome time
16:15U2 6104 from Munich at the gate
13:55UA 178 to Denver leaves the gate
21 h 40 apart on the timetable, overnight
UA 178 leaves 21 h 40 after U2 6104 arrives on the timetable: more than half a day, so not a connection we count.