KL 1414 then KL 1617 at Schiphol
Rennes → Amsterdam → Milan Linate
Timetable, Amsterdam time
19:35KL 1414 from Rennes at the gate
17:25KL 1617 to Milan Linate leaves the gate
21 h 50 apart on the timetable, overnight
KL 1617 leaves 21 h 50 after KL 1414 arrives on the timetable: more than half a day, so not a connection we count.