A3 612 then U2 3812 at Charles de Gaulle
Athens → Paris → Milan
Timetable, Paris time
15:55A3 612 from Athens at the gate
10:45U2 3812 to Milan leaves the gate
18 h 50 apart on the timetable, overnight
U2 3812 leaves 18 h 50 after A3 612 arrives on the timetable: more than half a day, so not a connection we count.