U2 3851 then U2 7823 at Schiphol
Milan → Amsterdam → Palermo
Timetable, Amsterdam time
09:20U2 3851 from Milan at the gate
07:40U2 7823 to Palermo leaves the gate
22 h 20 apart on the timetable, overnight
U2 7823 leaves 22 h 20 after U2 3851 arrives on the timetable: more than half a day, so not a connection we count.