A3 981 then A3 734 at Athens
Sofia → Athens → Tunis
Timetable, Athens time
12:30A3 981 from Sofia at the gate
08:00A3 734 to Tunis leaves the gate
19 h 30 apart on the timetable, overnight
A3 734 leaves 19 h 30 after A3 981 arrives on the timetable: more than half a day, so not a connection we count.