AC 7255 then 8C 1231 at Miami
Quito → Miami → San Juan
Timetable, Miami time
11:30AC 7255 from Quito at the gate
00:008C 1231 to San Juan leaves the gate
12 h 30 apart on the timetable, overnight
8C 1231 leaves 12 h 30 after AC 7255 arrives on the timetable: more than half a day, so not a connection we count.