BA 284 then BA 1332 at Heathrow
San Francisco → London → Newcastle
Timetable, London time
11:50BA 284 from San Francisco at the gate
11:35BA 1332 to Newcastle leaves the gate
23 h 45 apart on the timetable, overnight
BA 1332 leaves 23 h 45 after BA 284 arrives on the timetable: more than half a day, so not a connection we count.