There are no overlapping standard business hours (9am - 5pm). Use the interactive converter above to visually compare hours side by side.

Honolulu

HST (GMT-10)

No Daylight Saving Time

Sydney

AEST (GMT+10)

AEDT starts on Oct 3, 2026

What is the best time to schedule a meeting between Honolulu and Sydney?

There are no overlapping business hours. Consider early morning or late evening meetings, or use the interactive converter on this page to find a workable time slot.

How many hours apart are Honolulu and Sydney?

Sydney is 20 hours ahead of Honolulu.

Does the overlap change with daylight saving time?

Sydney observes daylight saving time (AEDT starts on Oct 4, 2026) but Honolulu does not, so the overlap may shift by an hour seasonally. The interactive converter on this page always reflects the current offset, even across daylight saving transition.