JQ 7991 then QF 697 at Melbourne
Brisbane → Melbourne → Adelaide
Timetable, Melbourne time
21:30JQ 7991 from Brisbane at the gate
19:20QF 697 to Adelaide leaves the gate
21 h 50 apart on the timetable, overnight
QF 697 leaves 21 h 50 after JQ 7991 arrives on the timetable: more than half a day, so not a connection we count.