DE 1581 then DE 1668 at Frankfurt
Corfu → Frankfurt am Main → Heraklion
Timetable, Frankfurt am Main time
11:45DE 1581 from Corfu at the gate
09:40DE 1668 to Heraklion leaves the gate
21 h 55 apart on the timetable, overnight
DE 1668 leaves 21 h 55 after DE 1581 arrives on the timetable: more than half a day, so not a connection we count.