BR 757 then BR 215 at Taipei
Hangzhou → Taipei → Singapore
Timetable, Taipei time
21:30BR 757 from Hangzhou at the gate
09:35BR 215 to Singapore leaves the gate
12 h 05 apart on the timetable, overnight
BR 215 leaves 12 h 05 after BR 757 arrives on the timetable: more than half a day, so not a connection we count.