Hong Kong is 12 hours ahead of Atlanta

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

There's no shared 9-to-5 between Atlanta and Hong Kong; at 12 hours apart, one city's workday is the other's evening or night. Your best bet is one team taking an early-morning or late-evening call — alternating who stretches keeps it fair over time. These times hold for most of the year, but Atlanta's daylight saving (which Hong Kong doesn't use) shifts them by an hour twice annually.