BA 432 then KL 1653 at Schiphol
London Heathrow → Amsterdam → Firenze
Timetable, Amsterdam time
10:40BA 432 from London Heathrow at the gate
10:25KL 1653 to Firenze leaves the gate
23 h 45 apart on the timetable, overnight
KL 1653 leaves 23 h 45 after BA 432 arrives on the timetable: more than half a day, so not a connection we count.