BA 456 then FR 3009 at Madrid
London Heathrow → Madrid → Milan
Timetable, Madrid time
09:45BA 456 from London Heathrow at the gate
06:45FR 3009 to Milan leaves the gate
21 h apart on the timetable, overnight
FR 3009 leaves 21 h after BA 456 arrives on the timetable: more than half a day, so not a connection we count.