A3 691 then SM 652 at Athens
Nice → Athens → Cairo
Timetable, Athens time
19:00A3 691 from Nice at the gate
18:00SM 652 to Cairo leaves the gate
23 h apart on the timetable, overnight
SM 652 leaves 23 h after A3 691 arrives on the timetable: more than half a day, so not a connection we count.