FR 44 then FR 6914 at Vienna
Athens → Vienna → Milan
Timetable, Vienna time
16:00FR 44 from Athens at the gate
08:25FR 6914 to Milan leaves the gate
16 h 25 apart on the timetable, overnight
FR 6914 leaves 16 h 25 after FR 44 arrives on the timetable: more than half a day, so not a connection we count.