BA 965 then DL 4 at Heathrow
Hamburg → London → New York JFK
Timetable, London time
21:30BA 965 from Hamburg at the gate
16:35DL 4 to New York JFK leaves the gate
19 h 05 apart on the timetable, overnight
DL 4 leaves 19 h 05 after BA 965 arrives on the timetable: more than half a day, so not a connection we count.