AC 898 then A3 780 at Athens
Montréal → Athens → Zagreb
Timetable, Athens time
11:00AC 898 from Montréal 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 898 arrives on the timetable: more than half a day, so not a connection we count.