BA 817 then BR 68 at Heathrow
Copenhagen → London → Taipei
Timetable, London time
22:35BA 817 from Copenhagen at the gate
21:20BR 68 to Taipei leaves the gate
22 h 45 apart on the timetable, overnight
BR 68 leaves 22 h 45 after BA 817 arrives on the timetable: more than half a day, so not a connection we count.