Time Difference: Honolulu vs Sydney
Honolulu
9:26:16 PM HST
Wednesday, May 13, 2026
20h
20h
Sydney
5:26:16 PM AEST
Thursday, May 14, 2026
Sydney is 20 hours ahead of Honolulu.
Quick Reference
- Honolulu
- HST (GMT-10)
No Daylight Saving Time
- Sydney
- AEST (GMT+10)
AEDT starts on Oct 3, 2026
Frequently Asked Questions
- What is the time difference between Honolulu and Sydney?
- Sydney is 20 hours ahead of Honolulu.
- When is the best time to call from Honolulu to Sydney?
- The best time to call is during overlapping business hours (9 AM – 5 PM) in both cities. Use the interactive converter on this page to visually compare hours side by side.
- Does the time difference change with daylight saving time?
- The time difference may change when either city enters or exits daylight saving time. Honolulu uses HST and Sydney uses AEST.