Moscow is 12 hours ahead of Anchorage
There is no standard 8-to-6 overlap. Someone joins early or late.
With 12 hours between them, Anchorage and Moscow have no overlap during standard business hours — by the time one team logs on, the other has logged off. The usual fix is an early start for Anchorage or a late finish for Moscow — pick whichever team has more flexibility. Bear in mind Anchorage shifts for daylight saving while Moscow stays fixed — recheck these hours after each clock change.