World Time ZonesTime difference: Sydney and Honolulu
Last updated:
Difference now−21 hHonolulu is 21 h behind Sydney
Time in Honolulu04:10UTC−10
Time in Sydney01:10UTC+11
Changes per year2due to DST
Weekday 9–18 overlap6 h
Difference by month (2026, 1st of each month)
| Month | Difference |
|---|---|
| Jan | −21 h |
| Feb | −21 h |
| Mar | −21 h |
| Apr | −21 h |
| May | −20 h |
| Jun | −20 h |
| Jul | −20 h |
| Aug | −20 h |
| Sep | −20 h |
| Oct | −20 h |
| Nov | −21 h |
| Dec | −21 h |
Days in 2026 at each difference
183 d
182 d
Sydney → Honolulu conversion (today)
| Sydney | Honolulu |
|---|---|
| 00:00 | 03:00 (-1 d) |
| 01:00 | 04:00 (-1 d) |
| 02:00 | 05:00 (-1 d) |
| 03:00 | 06:00 (-1 d) |
| 04:00 | 07:00 (-1 d) |
| 05:00 | 08:00 (-1 d) |
| 06:00 | 09:00 (-1 d) |
| 07:00 | 10:00 (-1 d) |
| 08:00 | 11:00 (-1 d) |
| 09:00 | 12:00 (-1 d) |
| 10:00 | 13:00 (-1 d) |
| 11:00 | 14:00 (-1 d) |
| 12:00 | 15:00 (-1 d) |
| 13:00 | 16:00 (-1 d) |
| 14:00 | 17:00 (-1 d) |
| 15:00 | 18:00 (-1 d) |
| 16:00 | 19:00 (-1 d) |
| 17:00 | 20:00 (-1 d) |
| 18:00 | 21:00 (-1 d) |
| 19:00 | 22:00 (-1 d) |
| 20:00 | 23:00 (-1 d) |
| 21:00 | 00:00 |
| 22:00 | 01:00 |
| 23:00 | 02:00 |
Overlapping office hours today (09–18 local)
11:00 Sydney = 14:00 Honolulu, 12:00 Sydney = 15:00 Honolulu, 13:00 Sydney = 16:00 Honolulu, 14:00 Sydney = 17:00 Honolulu, 09:00 Sydney = 12:00 Honolulu, 10:00 Sydney = 13:00 Honolulu
Clock changes 2026–2027
| Place | Local time | Change |
|---|---|---|
| Sydney | 2026-04-05 02:00 | UTC+11 → UTC+10 |
| Sydney | 2026-10-04 03:00 | UTC+10 → UTC+11 |
| Sydney | 2027-04-04 02:00 | UTC+11 → UTC+10 |
| Sydney | 2027-10-03 03:00 | UTC+10 → UTC+11 |
Calculated from the IANA Time Zone Database; governments can change their rules.
About this page
Honolulu is 21 h behind Sydney.