BA 1367 then BA 229 at Heathrow
Manchester → London → Baltimore
Timetable, London time
14:10BA 1367 from Manchester at the gate
13:50BA 229 to Baltimore leaves the gate
23 h 40 apart on the timetable, overnight
BA 229 leaves 23 h 40 after BA 1367 arrives on the timetable: more than half a day, so not a connection we count.