Montreal is 12 hours behind Taipei

There is no standard 8-to-6 overlap. Someone joins early or late.

Taipei and Montreal have no natural overlap. The 12-hour gap is simply too large for regular working hours to meet. Treat the handoff like a relay — Montreal wraps up and leaves notes for Taipei to pick up as their day begins. Note the seasonal wrinkle: when Montreal is on daylight saving and Taipei isn't, the gap between them grows or shrinks by an hour.