KL 1754 then KL 777 at Schiphol
Hamburg → Amsterdam → Saint Martin
Timetable, Amsterdam time
12:30KL 1754 from Hamburg at the gate
10:05KL 777 to Saint Martin leaves the gate
21 h 35 apart on the timetable, overnight
KL 777 leaves 21 h 35 after KL 1754 arrives on the timetable: more than half a day, so not a connection we count.