BR 620 then UA 1137 at LAX
Taipei → Los Angeles → Guatemala City
Timetable, Los Angeles time
01:37BR 620 from Taipei at the gate
23:00UA 1137 to Guatemala City leaves the gate
21 h 23 apart on the timetable
UA 1137 leaves 21 h 23 after BR 620 arrives on the timetable: more than half a day, so not a connection we count.