PD 766 then AC 896 at Toronto Pearson
Cancún → Toronto → Athens
Timetable, Toronto time
18:59PD 766 from Cancún at the gate
18:30AC 896 to Athens leaves the gate
23 h 31 apart on the timetable, overnight
AC 896 leaves 23 h 31 after PD 766 arrives on the timetable: more than half a day, so not a connection we count.