UA 923 then BA 772 at Heathrow
Los Angeles → London → Oslo
Timetable, London time
13:30UA 923 from Los Angeles at the gate
12:45BA 772 to Oslo leaves the gate
23 h 15 apart on the timetable, overnight
BA 772 leaves 23 h 15 after UA 923 arrives on the timetable: more than half a day, so not a connection we count.