OS 207 then DE 1668 at Frankfurt
Vienna → Frankfurt am Main → Heraklion
Timetable, Frankfurt am Main time
12:00OS 207 from Vienna at the gate
09:40DE 1668 to Heraklion leaves the gate
21 h 40 apart on the timetable, overnight
DE 1668 leaves 21 h 40 after OS 207 arrives on the timetable: more than half a day, so not a connection we count.