JQ 7991 then QF 478 at Melbourne
Brisbane → Melbourne → Sydney Kingsford Smith
Timetable, Melbourne time
21:30JQ 7991 from Brisbane at the gate
18:00QF 478 to Sydney Kingsford Smith leaves the gate
20 h 30 apart on the timetable, overnight
QF 478 leaves 20 h 30 after JQ 7991 arrives on the timetable: more than half a day, so not a connection we count.