EK 75 then U2 1630 at Charles de Gaulle
Dubai → Paris → Nice
Timetable, Paris time
19:25EK 75 from Dubai at the gate
16:45U2 1630 to Nice leaves the gate
21 h 20 apart on the timetable, overnight
U2 1630 leaves 21 h 20 after EK 75 arrives on the timetable: more than half a day, so not a connection we count.