BJ 520 then U2 3806 at Charles de Gaulle
Tunis → Paris → Milan
Timetable, Paris time
18:35BJ 520 from Tunis at the gate
09:35U2 3806 to Milan leaves the gate
15 h apart on the timetable, overnight
U2 3806 leaves 15 h after BJ 520 arrives on the timetable: more than half a day, so not a connection we count.