BA 1349 then QR 4 at Heathrow
Saint Helier → London → Doha
Timetable, London time
16:20BA 1349 from Saint Helier at the gate
14:15QR 4 to Doha leaves the gate
21 h 55 apart on the timetable, overnight
QR 4 leaves 21 h 55 after BA 1349 arrives on the timetable: more than half a day, so not a connection we count.