BA 807 then BA 219 at Heathrow
Copenhagen → London → Denver
Timetable, London time
12:50BA 807 from Copenhagen at the gate
12:10BA 219 to Denver leaves the gate
23 h 20 apart on the timetable, overnight
BA 219 leaves 23 h 20 after BA 807 arrives on the timetable: more than half a day, so not a connection we count.