AA 108 then BA 962 at Heathrow
Boston → London → Hamburg
Timetable, London time
07:00AA 108 from Boston at the gate
06:45BA 962 to Hamburg leaves the gate
23 h 45 apart on the timetable, overnight
BA 962 leaves 23 h 45 after AA 108 arrives on the timetable: more than half a day, so not a connection we count.