K4 550 then JL 723 at Narita
Chicago → Tokyo → Kuala Lumpur
Timetable, Tokyo time
11:59K4 550 from Chicago at the gate
11:30JL 723 to Kuala Lumpur leaves the gate
23 h 31 apart on the timetable, overnight
JL 723 leaves 23 h 31 after K4 550 arrives on the timetable: more than half a day, so not a connection we count.