QF 2120 then JQ 539 at Sydney
Griffith → Sydney → Melbourne
Timetable, Sydney time
09:20QF 2120 from Griffith at the gate
21:55JQ 539 to Melbourne leaves the gate
12 h 35 apart on the timetable
JQ 539 leaves 12 h 35 after QF 2120 arrives on the timetable: more than half a day, so not a connection we count.