DE 4322 then DE 1668 at Frankfurt
Barcelona → Frankfurt am Main → Heraklion
Timetable, Frankfurt am Main time
12:25DE 4322 from Barcelona at the gate
09:40DE 1668 to Heraklion leaves the gate
21 h 15 apart on the timetable, overnight
DE 1668 leaves 21 h 15 after DE 4322 arrives on the timetable: more than half a day, so not a connection we count.