BA 712 then LX 2254 at Zurich
London Heathrow → Zurich → Budapest
Timetable, Zurich time
12:40BA 712 from London Heathrow at the gate
12:25LX 2254 to Budapest leaves the gate
23 h 45 apart on the timetable, overnight
LX 2254 leaves 23 h 45 after BA 712 arrives on the timetable: more than half a day, so not a connection we count.