FR 1557 then UA 933 at Dublin
Manchester → Dublin → Washington
Timetable, Dublin time
23:50FR 1557 from Manchester at the gate
19:49UA 933 to Washington leaves the gate
19 h 59 apart on the timetable, overnight
UA 933 leaves 19 h 59 after FR 1557 arrives on the timetable: more than half a day, so not a connection we count.