QF 591 then QF 2121 at Sydney
Gold Coast → Sydney → Griffith
Timetable, Sydney time
11:05QF 591 from Gold Coast at the gate
06:05QF 2121 to Griffith leaves the gate
19 h apart on the timetable, overnight
QF 2121 leaves 19 h after QF 591 arrives on the timetable: more than half a day, so not a connection we count.