GQ 671 then FR 44 at Athens
Istanbul → Athens → Vienna
Timetable, Athens time
10:55GQ 671 from Istanbul at the gate
06:00FR 44 to Vienna leaves the gate
19 h 05 apart on the timetable, overnight
FR 44 leaves 19 h 05 after GQ 671 arrives on the timetable: more than half a day, so not a connection we count.