CA 863 then GQ 304 at Athens
Beijing → Athens → Mytilene
Timetable, Athens time
07:55CA 863 from Beijing at the gate
20:05GQ 304 to Mytilene leaves the gate
12 h 10 apart on the timetable
GQ 304 leaves 12 h 10 after CA 863 arrives on the timetable: more than half a day, so not a connection we count.