DL 5764 then UA 3421 at Newark
Boston → New York → Charlotte
Timetable, New York time
09:27DL 5764 from Boston at the gate
09:25UA 3421 to Charlotte leaves the gate
23 h 58 apart on the timetable, overnight
UA 3421 leaves 23 h 58 after DL 5764 arrives on the timetable: more than half a day, so not a connection we count.