TK 1933 then QR 4 at Heathrow
Istanbul → London → Doha
Timetable, London time
14:45TK 1933 from Istanbul at the gate
14:15QR 4 to Doha leaves the gate
23 h 30 apart on the timetable, overnight
QR 4 leaves 23 h 30 after TK 1933 arrives on the timetable: more than half a day, so not a connection we count.