Abu Dhabi is 11 hours ahead of San Diego
There is no standard 8-to-6 overlap. Someone joins early or late.
Given Abu Dhabi is 11 hours ahead of San Diego, the realistic answer is that there's no convenient shared slot during normal business hours. Catch the edges of the day: the last hour for Abu Dhabi or the first hour for San Diego is usually the least painful option. The window above shifts seasonally: San Diego keeps daylight saving while Abu Dhabi ignores it.