A3 877 then A3 972 at Athens
Budapest → Athens → Tirana
Timetable, Athens time
19:20A3 877 from Budapest at the gate
17:40A3 972 to Tirana leaves the gate
22 h 20 apart on the timetable, overnight
A3 972 leaves 22 h 20 after A3 877 arrives on the timetable: more than half a day, so not a connection we count.