BA 438 then KL 1633 at Schiphol
London Heathrow → Amsterdam → Venezia
Timetable, Amsterdam time
15:15BA 438 from London Heathrow at the gate
15:10KL 1633 to Venezia leaves the gate
23 h 55 apart on the timetable, overnight
KL 1633 leaves 23 h 55 after BA 438 arrives on the timetable: more than half a day, so not a connection we count.