Bucharest is 6 hours behind Taipei
Best overlap: 2:00 PM to 6:00 PM in Taipei is 8:00 AM to 12:00 PM in Bucharest.
Plan around 2:00 PM to 6:00 PM in Taipei, which is 8:00 AM to 12:00 PM in Bucharest, to catch everyone during office hours. Since Bucharest is 6 hours behind Taipei, the workdays overlap by around 4 hours; 2:00 PM in Taipei (8:00 AM in Bucharest) makes a reliable recurring slot. For part of the year the maths changes: Bucharest observes daylight saving, Taipei does not, shifting the overlap by an hour.