Time difference between Honolulu and Sydney: 20 hours
Honolulu
United States (Hawaii) · UTC-10
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Sydney
Australia · UTC+10
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Honolulu is 20 hours behind Sydney
Best time for a call or meeting
Honolulu 13:00–18:00 = Sydney 09:00–14:00
Both cities are within business hours (9:00–18:00).
Convert a specific time
→ Sydney
Hour-by-hour conversion
| Honolulu | Sydney |
|---|---|
| 00:00 | 20:00 |
| 01:00 | 21:00 |
| 02:00 | 22:00 |
| 03:00 | 23:00 |
| 04:00 | 00:00 |
| 05:00 | 01:00 |
| 06:00 | 02:00 |
| 07:00 | 03:00 |
| 08:00 | 04:00 |
| 09:00 | 05:00 |
| 10:00 | 06:00 |
| 11:00 | 07:00 |
| 12:00 | 08:00 |
| 13:00 | 09:00 |
| 14:00 | 10:00 |
| 15:00 | 11:00 |
| 16:00 | 12:00 |
| 17:00 | 13:00 |
| 18:00 | 14:00 |
| 19:00 | 15:00 |
| 20:00 | 16:00 |
| 21:00 | 17:00 |
| 22:00 | 18:00 |
| 23:00 | 19:00 |
Business hours 9–18 Waking hours 7–22 Night / early morning
Daylight saving time can change the difference by season. Shown values reflect the current offset.
Frequently asked questions
How many hours is the time difference between Honolulu and Sydney?
Honolulu is 20 hours behind Sydney. When it is 12:00 noon in Honolulu, it is 08:00 (next day) in Sydney.
Does daylight saving time affect the difference?
Yes. One or both places observe daylight saving time, so the difference changes with the season. This page shows the current difference.
What is the best time for a call or meeting?
Honolulu 13:00–18:00 = Sydney 09:00–14:00. Both cities are within business hours (9:00–18:00).
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