BA 949 then DL 37 at Heathrow
Munich → London → Atlanta
Timetable, London time
16:05BA 949 from Munich at the gate
16:00DL 37 to Atlanta leaves the gate
23 h 55 apart on the timetable, overnight
DL 37 leaves 23 h 55 after BA 949 arrives on the timetable: more than half a day, so not a connection we count.