BA 483 then EW 7465 at Heathrow
Barcelona → London → Hamburg
Timetable, London time
19:25BA 483 from Barcelona at the gate
19:20EW 7465 to Hamburg leaves the gate
23 h 55 apart on the timetable, overnight
EW 7465 leaves 23 h 55 after BA 483 arrives on the timetable: more than half a day, so not a connection we count.