Honolulu is 11 hours behind Geneva
There is no standard 8-to-6 overlap. Someone joins early or late.
With 11 hours between them, Geneva and Honolulu 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 Honolulu or a late finish for Geneva — pick whichever team has more flexibility. One seasonal catch: Geneva springs forward and falls back, but Honolulu doesn't, so the gap changes by an hour for several months of the year.