There is no standard 8-to-6 overlap. Someone joins early or late.
Given Honolulu is 13.5 hours behind Tehran, 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 Tehran or the first hour for Honolulu is usually the least painful option.
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Tehran
Asia/Tehran
Honolulu
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Frequently Asked Questions
What is the time difference between Honolulu and Tehran?
Tehran is 13.5 hours ahead of Honolulu.
What are the best overlapping working hours between Honolulu and Tehran?
Unfortunately, there are no standard overlapping working hours (8 AM to 6 PM) between Honolulu and Tehran. You will likely need to schedule meetings outside of regular office hours.
How many hours overlap between Honolulu and Tehran during a typical workday?
Unfortunately, there are no overlapping work hours. Someone will usually need to join earlier or later than a normal workday.
Does Daylight Saving Time affect the time difference between Honolulu and Tehran?
Neither Honolulu nor Tehran observes Daylight Saving Time, so the time difference remains consistent year-round.