TU 752 then AZ 1781 at Fiumicino
Tunis → Rome → Palermo
Timetable, Rome time
14:25TU 752 from Tunis at the gate
13:15AZ 1781 to Palermo leaves the gate
22 h 50 apart on the timetable, overnight
AZ 1781 leaves 22 h 50 after TU 752 arrives on the timetable: more than half a day, so not a connection we count.