KL 1819 then 4Y 900 at Frankfurt
Amsterdam → Frankfurt am Main → Dubrovnik
Timetable, Frankfurt am Main time
13:35KL 1819 from Amsterdam at the gate
09:254Y 900 to Dubrovnik leaves the gate
19 h 50 apart on the timetable, overnight
4Y 900 leaves 19 h 50 after KL 1819 arrives on the timetable: more than half a day, so not a connection we count.