EC 8402 then EC 8087 at Gatwick
Paris Charles de Gaulle → London → Milan
Timetable, London time
07:15EC 8402 from Paris Charles de Gaulle at the gate
20:00EC 8087 to Milan leaves the gate
12 h 45 apart on the timetable
EC 8087 leaves 12 h 45 after EC 8402 arrives on the timetable: more than half a day, so not a connection we count.