JQ 7991 then QF 486 at Melbourne
Brisbane → Melbourne → Sydney Kingsford Smith
Timetable, Melbourne time
21:30JQ 7991 from Brisbane at the gate
19:15QF 486 to Sydney Kingsford Smith leaves the gate
21 h 45 apart on the timetable, overnight
QF 486 leaves 21 h 45 after JQ 7991 arrives on the timetable: more than half a day, so not a connection we count.