Anchorage is 12 hours behind Istanbul
There is no standard 8-to-6 overlap. Someone joins early or late.
Practically speaking, Istanbul and Anchorage never share office hours; 12 hours of separation keeps their days apart. To talk live, someone has to flex: an early start in Anchorage can catch the tail end of the day in Istanbul, or the other way round. One seasonal catch: Anchorage springs forward and falls back, but Istanbul doesn't, so the gap changes by an hour for several months of the year.