A3 899 then A3 250 at Athens
Yerevan → Athens → Mytilene
Timetable, Athens time
06:15A3 899 from Yerevan at the gate
05:40A3 250 to Mytilene leaves the gate
23 h 25 apart on the timetable, overnight
A3 250 leaves 23 h 25 after A3 899 arrives on the timetable: more than half a day, so not a connection we count.