QG 526 then UA 28 at Changi
Jakarta → Singapore → San Francisco
Timetable, Singapore time
20:00QG 526 from Jakarta at the gate
08:40UA 28 to San Francisco leaves the gate
12 h 40 apart on the timetable, overnight
UA 28 leaves 12 h 40 after QG 526 arrives on the timetable: more than half a day, so not a connection we count.