KL 1602 then KL 777 at Schiphol
Rome → Amsterdam → Saint Martin
Timetable, Amsterdam time
12:40KL 1602 from Rome at the gate
10:05KL 777 to Saint Martin leaves the gate
21 h 25 apart on the timetable, overnight
KL 777 leaves 21 h 25 after KL 1602 arrives on the timetable: more than half a day, so not a connection we count.