TK 1933 then BA 223 at Heathrow
Istanbul → London → Nashville
Timetable, London time
14:45TK 1933 from Istanbul at the gate
13:10BA 223 to Nashville leaves the gate
22 h 25 apart on the timetable, overnight
BA 223 leaves 22 h 25 after TK 1933 arrives on the timetable: more than half a day, so not a connection we count.