A3 897 then EC 3656 at Athens
Tbilisi → Athens → Milan
Timetable, Athens time
07:00A3 897 from Tbilisi at the gate
21:40EC 3656 to Milan leaves the gate
14 h 40 apart on the timetable
EC 3656 leaves 14 h 40 after A3 897 arrives on the timetable: more than half a day, so not a connection we count.