Hong Kong zone
GMT+8 (GMT+8)
Sydney zone
GMT+10 (GMT+10)
Difference
2 hours ahead of Hong Kong
Business overlap
6h (9-5 windows)
Working hours overlap
Each cell is one hour in Hong Kong. Filled cells mark when 9 AM – 5 PM in Hong Kong and Sydney both apply.
6 hours per day
- Hong Kong
- GMT+8
- Sydney
- GMT+10
- Difference
- +2h
- Business overlap
- 6h
Hour-by-hour conversion
Each row shows the matching local time in Sydney for an hour in Hong Kong.
| Hong Kong | Sydney | Day | Window |
|---|---|---|---|
| 12:00 AM | 2:00 AM | same day | — |
| 1:00 AM | 3:00 AM | same day | — |
| 2:00 AM | 4:00 AM | same day | — |
| 3:00 AM | 5:00 AM | same day | — |
| 4:00 AM | 6:00 AM | same day | — |
| 5:00 AM | 7:00 AM | same day | — |
| 6:00 AM | 8:00 AM | same day | — |
| 7:00 AM | 9:00 AM | same day | — |
| 8:00 AM | 10:00 AM | same day | — |
| 9:00 AM | 11:00 AM | same day | Both 9-5 |
| 10:00 AM | 12:00 PM | same day | Both 9-5 |
| 11:00 AM | 1:00 PM | same day | Both 9-5 |
| 12:00 PM | 2:00 PM | same day | Both 9-5 |
| 1:00 PM | 3:00 PM | same day | Both 9-5 |
| 2:00 PM | 4:00 PM | same day | Both 9-5 |
| 3:00 PM | 5:00 PM | same day | — |
| 4:00 PM | 6:00 PM | same day | — |
| 5:00 PM | 7:00 PM | same day | — |
| 6:00 PM | 8:00 PM | same day | — |
| 7:00 PM | 9:00 PM | same day | — |
| 8:00 PM | 10:00 PM | same day | — |
| 9:00 PM | 11:00 PM | same day | — |
| 10:00 PM | 12:00 AM | next day | — |
| 11:00 PM | 1:00 AM | next day | — |
Best meeting windows
If both teams keep standard 9 AM – 5 PM hours, the overlap window is roughly 9:00 AM – 3:00 PM in Hong Kong time. That gives you 6 hours per workday for live meetings.
Tighter overlap is achievable by having the side with later working hours start earlier, or by treating the first and last hours of each side as flexible. The bar above marks every hour where both cities sit inside a 9 AM – 5 PM window.
About converting Hong Kong time to Sydney time
Hong Kong follows the Asia/Hong_Kong time zone (currently GMT+8, GMT+8), while Sydney follows Australia/Sydney (currently GMT+10, GMT+10). Sydney is 2 hours ahead of Hong Kong right now.
Sydney observes daylight saving time, while Hong Kong does not. The offset between the two cities changes by one hour at the daylight saving transitions.
Daylight saving transitions in 2026
Hong Kong
Does not observe daylight saving time.
Sydney
- Fall back · Sunday, April 5, 2026
- Spring forward · Sunday, October 4, 2026
Reverse this conversion
Sydney to Hong Kong
Open the converter
Plan a meeting between Hong Kong and Sydney
More conversions from Hong Kong
Frequently asked questions
- How many hours is Hong Kong from Sydney?
- Sydney is 2 hours ahead of Hong Kong right now.
- What time is 9:00 AM Hong Kong in Sydney?
- 9:00 AM in Hong Kong is 11:00 AM in Sydney.
- What time is 5:00 PM Hong Kong in Sydney?
- 5:00 PM in Hong Kong is 7:00 PM in Sydney.
- When do Hong Kong and Sydney business hours overlap?
- Standard 9 AM - 5 PM working hours overlap for about 6 hours, roughly from 9:00 AM to 3:00 PM in Hong Kong time.
- Does daylight saving time change the difference between Hong Kong and Sydney?
- Sydney observes daylight saving time while Hong Kong does not, so the offset between them changes by one hour twice a year.
Local time page
Time in Hong Kong
Local time page
Time in Sydney