KL 9864 then KL 1945 at Schiphol
Brussels → Amsterdam → Basel
Timetable, Amsterdam time
13:32KL 9864 from Brussels at the gate
12:10KL 1945 to Basel leaves the gate
22 h 38 apart on the timetable, overnight
KL 1945 leaves 22 h 38 after KL 9864 arrives on the timetable: more than half a day, so not a connection we count.