BA 777 then BA 229 at Heathrow
Stockholm → London → Baltimore
Timetable, London time
15:10BA 777 from Stockholm at the gate
13:50BA 229 to Baltimore leaves the gate
22 h 40 apart on the timetable, overnight
BA 229 leaves 22 h 40 after BA 777 arrives on the timetable: more than half a day, so not a connection we count.