JQ 7991 then QF 484 at Melbourne
Brisbane → Melbourne → Sydney Kingsford Smith
Timetable, Melbourne time
21:30JQ 7991 from Brisbane at the gate
18:50QF 484 to Sydney Kingsford Smith leaves the gate
21 h 20 apart on the timetable, overnight
QF 484 leaves 21 h 20 after JQ 7991 arrives on the timetable: more than half a day, so not a connection we count.