Taipei is 12 hours ahead of Washington, D.C.
There is no standard 8-to-6 overlap. Someone joins early or late.
Washington, D.C. and Taipei have no natural overlap. The 12-hour gap is simply too large for regular working hours to meet. Treat the handoff like a relay — Washington, D.C. wraps up and leaves notes for Taipei to pick up as their day begins. One seasonal catch: Washington, D.C. springs forward and falls back, but Taipei doesn't, so the gap changes by an hour for several months of the year.