BA 713 then EW 7463 at Heathrow
Zurich → London → Hamburg
Timetable, London time
14:30BA 713 from Zurich at the gate
14:10EW 7463 to Hamburg leaves the gate
23 h 40 apart on the timetable, overnight
EW 7463 leaves 23 h 40 after BA 713 arrives on the timetable: more than half a day, so not a connection we count.