AF 1005 then BA 317 at Charles de Gaulle
Rome → Paris → London Heathrow
Timetable, Paris time
08:15AF 1005 from Rome at the gate
20:25BA 317 to London Heathrow leaves the gate
12 h 10 apart on the timetable
BA 317 leaves 12 h 10 after AF 1005 arrives on the timetable: more than half a day, so not a connection we count.