Live Synchronized Time Difference
Hong KongtoViennaTime Difference
🇭🇰
Hong Kong
Hong Kong (GMT+8)23:10:21UTC+8:00
🇦🇹
Vienna
Austria (GMT+1)16:10:21UTC+1:00
Direct Distance8,728 km (5,423 miles)
Estimated Flight Time~10.8 hours
Business Overlap1 overlapping hours (9am–5pm)
Mutual Working Window: 1 Overlapping Hour
Recommended calling window between Hong Kong and Vienna
Off-Peak Calling Window
Hong Kong Time
4:00 PM – 5:00 PM
Vienna Time
9:00 AM – 10:00 AM
Both locations share 1 overlapping standard business hour (9:00 AM – 5:00 PM). This is the premier window for real-time video conferences, corporate calls, and instant collaboration without outside-hours disruption.
24-Hour Schedule Conversion Matrix
Compare every hour of the day between Hong Kong and Vienna.
Work (9am-5pm)ShoulderSleep / Off
| Hong Kong Time (Hong Kong) | Vienna Time (Austria) | Status & Recommendation |
|---|---|---|
| 00:00AM | 17:00PM-1 day | ⚪ Outside Work Hours |
| 01:00AM | 18:00PM-1 day | ⚪ Outside Work Hours |
| 02:00AM | 19:00PM-1 day | ⚪ Outside Work Hours |
| 03:00AM | 20:00PM-1 day | ⚪ Outside Work Hours |
| 04:00AM | 21:00PM-1 day | ⚪ Outside Work Hours |
| 05:00AM | 22:00PM-1 day | ⚪ Outside Work Hours |
| 06:00AM | 23:00PM-1 day | ⚪ Outside Work Hours |
| 07:00AM | 00:00AM | ⚪ Outside Work Hours |
| 08:00AM | 01:00AM | ⚪ Outside Work Hours |
| 09:00AM | 02:00AM | ⚪ Outside Work Hours |
| 10:00AM | 03:00AM | ⚪ Outside Work Hours |
| 11:00AM | 04:00AM | ⚪ Outside Work Hours |
| 12:00PM | 05:00AM | ⚪ Outside Work Hours |
| 13:00PM | 06:00AM | ⚪ Outside Work Hours |
| 14:00PM | 07:00AM | 🟡 Feasible (Shoulder Hour) |
| 15:00PM | 08:00AM | 🟡 Feasible (Shoulder Hour) |
| 16:00PM | 09:00AM | 🟢 Ideal Meeting Window |
| 17:00PM | 10:00AM | ⚪ Outside Work Hours |
| 18:00PM | 11:00AM | ⚪ Outside Work Hours |
| 19:00PM | 12:00PM | ⚪ Outside Work Hours |
| 20:00PM | 13:00PM | ⚪ Outside Work Hours |
| 21:00PM | 14:00PM | ⚪ Outside Work Hours |
| 22:00PM | 15:00PM | ⚪ Outside Work Hours |
| 23:00PM | 16:00PM | ⚪ Outside Work Hours |
Frequently Asked Questions
What is the time difference between Hong Kong and Vienna?
Vienna is 7 hours behind Hong Kong.
What is the best time to schedule a cross-border meeting between Hong Kong and Vienna?
There are 1 overlapping standard business hours (09:00 - 17:00) between Hong Kong and Vienna. The optimal window is when both parties are in their core working shifts.
Does daylight saving time (DST) affect the time difference between Hong Kong and Vienna?
Yes. If either Hong Kong or Austria observes seasonal Daylight Saving Time transitions, the offset difference shifts by one hour on scheduled transition dates.