KL 856 then KL 1617 at Schiphol
Seoul → Amsterdam → Milan Linate
Timetable, Amsterdam time
05:20KL 856 from Seoul at the gate
17:25KL 1617 to Milan Linate leaves the gate
12 h 05 apart on the timetable
KL 1617 leaves 12 h 05 after KL 856 arrives on the timetable: more than half a day, so not a connection we count.