Hong Kong zone
GMT+8 (GMT+8)
Istanbul zone
GMT+3 (GMT+3)
Difference
5 hours behind Hong Kong
Business overlap
3h (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 Istanbul both apply.
3 hours per day
- Hong Kong
- GMT+8
- Istanbul
- GMT+3
- Difference
- -5h
- Business overlap
- 3h
Hour-by-hour conversion
Each row shows the matching local time in Istanbul for an hour in Hong Kong.
| Hong Kong | Istanbul | Day | Window |
|---|---|---|---|
| 12:00 AM | 7:00 PM | previous day | — |
| 1:00 AM | 8:00 PM | previous day | — |
| 2:00 AM | 9:00 PM | previous day | — |
| 3:00 AM | 10:00 PM | previous day | — |
| 4:00 AM | 11:00 PM | previous day | — |
| 5:00 AM | 12:00 AM | same day | — |
| 6:00 AM | 1:00 AM | same day | — |
| 7:00 AM | 2:00 AM | same day | — |
| 8:00 AM | 3:00 AM | same day | — |
| 9:00 AM | 4:00 AM | same day | — |
| 10:00 AM | 5:00 AM | same day | — |
| 11:00 AM | 6:00 AM | same day | — |
| 12:00 PM | 7:00 AM | same day | — |
| 1:00 PM | 8:00 AM | same day | — |
| 2:00 PM | 9:00 AM | same day | Both 9-5 |
| 3:00 PM | 10:00 AM | same day | Both 9-5 |
| 4:00 PM | 11:00 AM | same day | Both 9-5 |
| 5:00 PM | 12:00 PM | same day | — |
| 6:00 PM | 1:00 PM | same day | — |
| 7:00 PM | 2:00 PM | same day | — |
| 8:00 PM | 3:00 PM | same day | — |
| 9:00 PM | 4:00 PM | same day | — |
| 10:00 PM | 5:00 PM | same day | — |
| 11:00 PM | 6:00 PM | same day | — |
Best meeting windows
If both teams keep standard 9 AM – 5 PM hours, the overlap window is roughly 2:00 PM – 5:00 PM in Hong Kong time. That gives you 3 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 Istanbul time
Hong Kong follows the Asia/Hong_Kong time zone (currently GMT+8, GMT+8), while Istanbul follows Europe/Istanbul (currently GMT+3, GMT+3). Istanbul is 5 hours behind Hong Kong right now.
Neither city observes daylight saving time, so the offset between them is the same all year.
Reverse this conversion
Istanbul to Hong Kong
Open the converter
Plan a meeting between Hong Kong and Istanbul
More conversions from Hong Kong
Frequently asked questions
- How many hours is Hong Kong from Istanbul?
- Istanbul is 5 hours behind Hong Kong right now.
- What time is 9:00 AM Hong Kong in Istanbul?
- 9:00 AM in Hong Kong is 4:00 AM in Istanbul.
- What time is 5:00 PM Hong Kong in Istanbul?
- 5:00 PM in Hong Kong is 12:00 PM in Istanbul.
- When do Hong Kong and Istanbul business hours overlap?
- Standard 9 AM - 5 PM working hours overlap for about 3 hours, roughly from 2:00 PM to 5:00 PM in Hong Kong time.
- Does daylight saving time change the difference between Hong Kong and Istanbul?
- Neither Hong Kong nor Istanbul observes daylight saving time, so the offset between them is constant year-round.
Local time page
Time in Hong Kong
Local time page
Time in Istanbul