AC 896 then A3 780 at Athens
Toronto → Athens → Zagreb
Timetable, Athens time
11:00AC 896 from Toronto at the gate
07:35A3 780 to Zagreb leaves the gate
20 h 35 apart on the timetable, overnight
A3 780 leaves 20 h 35 after AC 896 arrives on the timetable: more than half a day, so not a connection we count.