QF 1511 then CX 104 at Melbourne
Sydney Kingsford Smith → Melbourne → Hong Kong
Timetable, Melbourne time
17:35QF 1511 from Sydney Kingsford Smith at the gate
15:30CX 104 to Hong Kong leaves the gate
21 h 55 apart on the timetable, overnight
CX 104 leaves 21 h 55 after QF 1511 arrives on the timetable: more than half a day, so not a connection we count.