A3 107 then A3 780 at Athens
Thessaloniki → Athens → Zagreb
Timetable, Athens time
09:55A3 107 from Thessaloniki at the gate
07:35A3 780 to Zagreb leaves the gate
21 h 40 apart on the timetable, overnight
A3 780 leaves 21 h 40 after A3 107 arrives on the timetable: more than half a day, so not a connection we count.