Time difference between Honolulu and Sydney
21 hours
Sydney is 21 hours ahead of Honolulu.
Does daylight saving change it?
Yes. In winter the gap is 21 hours; in summer it is 20 hours. Only Sydney observes daylight saving.
Overlapping work hours
Between 12:00 and 18:00 in Honolulu, Sydney is also at work — 6 hours a day.
Honolulu time → Sydney time
| 00:00 | 21:00 |
|---|---|
| 01:00 | 22:00 |
| 02:00 | 23:00 |
| 03:00 | 00:00next day |
| 04:00 | 01:00next day |
| 05:00 | 02:00next day |
| 06:00 | 03:00next day |
| 07:00 | 04:00next day |
| 08:00 | 05:00next day |
| 09:00 | 06:00next day |
| 10:00 | 07:00next day |
| 11:00 | 08:00next day |
| 12:00 | 09:00next day |
| 13:00 | 10:00next day |
| 14:00 | 11:00next day |
| 15:00 | 12:00next day |
| 16:00 | 13:00next day |
| 17:00 | 14:00next day |
| 18:00 | 15:00next day |
| 19:00 | 16:00next day |
| 20:00 | 17:00next day |
| 21:00 | 18:00next day |
| 22:00 | 19:00next day |
| 23:00 | 20:00next day |
Standard time (January). During daylight saving each row shifts by an hour.
Frequently asked questions
Q. How many hours is Honolulu ahead of Sydney?
21 hours on standard time. During daylight saving it becomes 20 hours, an hour more or less.
Q. What time is it in Sydney when it is noon in Honolulu?
Read the 12:00 row of the 24-hour table below. The table is on standard time, so each row shifts an hour during daylight saving.
Q. When should we schedule a meeting?
The two cities' work hours (09:00–18:00) overlap for 6 hours a day. Anything inside that window catches both sides at work.