AF 1205 then U2 4501 at Charles de Gaulle
Rome → Paris → Nice
Timetable, Paris time
12:35AF 1205 from Rome at the gate
06:55U2 4501 to Nice leaves the gate
18 h 20 apart on the timetable, overnight
U2 4501 leaves 18 h 20 after AF 1205 arrives on the timetable: more than half a day, so not a connection we count.