Athens is 13 hours ahead of Honolulu

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

The 13-hour difference means Honolulu and Athens miss each other entirely during regular office hours. Where you can, lean on async updates and save live calls for when one team is happy to start early or stay late. Don't be caught out by clock changes — Athens observes daylight saving and Honolulu doesn't, so the offset varies by an hour through the year.