Hyderabad is 13.5 hours ahead of Portland
There is no standard 8-to-6 overlap. Someone joins early or late.
Portland and Hyderabad have no natural overlap. The 13.5-hour gap is simply too large for regular working hours to meet. Treat the handoff like a relay — Portland wraps up and leaves notes for Hyderabad to pick up as their day begins. One seasonal catch: Portland springs forward and falls back, but Hyderabad doesn't, so the gap changes by an hour for several months of the year.