A3 629 then A3 982 at Athens
Luxembourg → Athens → Sofia
Timetable, Athens time
22:05A3 629 from Luxembourg at the gate
18:50A3 982 to Sofia leaves the gate
20 h 45 apart on the timetable, overnight
A3 982 leaves 20 h 45 after A3 629 arrives on the timetable: more than half a day, so not a connection we count.