AF 1581 then U2 4501 at Charles de Gaulle
London Heathrow → Paris → Nice
Timetable, Paris time
13:50AF 1581 from London Heathrow at the gate
06:55U2 4501 to Nice leaves the gate
17 h 05 apart on the timetable, overnight
U2 4501 leaves 17 h 05 after AF 1581 arrives on the timetable: more than half a day, so not a connection we count.