Portland is 16 hours behind Taipei
Best overlap: 8:00 AM to 10:00 AM in Taipei is 4:00 PM to 6:00 PM in Portland.
The hours that work for both Taipei and Portland are 8:00 AM to 10:00 AM (Taipei) and 4:00 PM to 6:00 PM (Portland). You've got roughly 2 hours — enough for a focused daily check-in if you hold it at 8:00 AM in Taipei (4:00 PM in Portland). Keep the date straight: Portland is on the previous day versus Taipei, which can trip up Friday or Monday meetings. The difference isn't constant year-round: Portland adjusts for daylight saving while Taipei holds steady.