San Diego is 3 hours ahead of Honolulu
Best overlap: 8:00 AM to 3:00 PM in Honolulu is 11:00 AM to 6:00 PM in San Diego.
Aim for 8:00 AM to 3:00 PM Honolulu time — that's 11:00 AM to 6:00 PM over in San Diego. San Diego is 3 hours ahead of Honolulu, but you still share a generous 7 hours of overlap, so scheduling is easy and there's room to move a meeting when you need to. Finally, San Diego observes daylight saving and Honolulu doesn't, so this window shifts by an hour for part of the year — recheck it each spring and autumn.