Live Synchronized Time Difference
Hong KongtoRiyadhTime Difference
🇭🇰
Hong Kong
Hong Kong (GMT+8)23:10:21UTC+8:00
🇸🇦
Riyadh
Saudi Arabia (GMT+3)18:10:21UTC+3:00
Direct Distance6,815 km (4,235 miles)
Estimated Flight Time~8.5 hours
Business Overlap3 overlapping hours (9am–5pm)
Mutual Working Window: 3 Overlapping Hours
Recommended calling window between Hong Kong and Riyadh
Off-Peak Calling Window
Hong Kong Time
2:00 PM – 5:00 PM
Riyadh Time
9:00 AM – 12:00 PM
Both locations share 3 overlapping standard business hours (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 Riyadh.
Work (9am-5pm)ShoulderSleep / Off
| Hong Kong Time (Hong Kong) | Riyadh Time (Saudi Arabia) | Status & Recommendation |
|---|---|---|
| 00:00AM | 19:00PM-1 day | ⚪ Outside Work Hours |
| 01:00AM | 20:00PM-1 day | ⚪ Outside Work Hours |
| 02:00AM | 21:00PM-1 day | ⚪ Outside Work Hours |
| 03:00AM | 22:00PM-1 day | ⚪ Outside Work Hours |
| 04:00AM | 23:00PM-1 day | ⚪ Outside Work Hours |
| 05:00AM | 00:00AM | ⚪ Outside Work Hours |
| 06:00AM | 01:00AM | ⚪ Outside Work Hours |
| 07:00AM | 02:00AM | ⚪ Outside Work Hours |
| 08:00AM | 03:00AM | ⚪ Outside Work Hours |
| 09:00AM | 04:00AM | ⚪ Outside Work Hours |
| 10:00AM | 05:00AM | ⚪ Outside Work Hours |
| 11:00AM | 06:00AM | ⚪ Outside Work Hours |
| 12:00PM | 07:00AM | 🟡 Feasible (Shoulder Hour) |
| 13:00PM | 08:00AM | 🟡 Feasible (Shoulder Hour) |
| 14:00PM | 09:00AM | 🟢 Ideal Meeting Window |
| 15:00PM | 10:00AM | 🟢 Ideal Meeting Window |
| 16:00PM | 11:00AM | 🟢 Ideal Meeting Window |
| 17:00PM | 12:00PM | ⚪ Outside Work Hours |
| 18:00PM | 13:00PM | ⚪ Outside Work Hours |
| 19:00PM | 14:00PM | ⚪ Outside Work Hours |
| 20:00PM | 15:00PM | ⚪ Outside Work Hours |
| 21:00PM | 16:00PM | ⚪ Outside Work Hours |
| 22:00PM | 17:00PM | ⚪ Outside Work Hours |
| 23:00PM | 18:00PM | ⚪ Outside Work Hours |
Frequently Asked Questions
What is the time difference between Hong Kong and Riyadh?
Riyadh is 5 hours behind Hong Kong.
What is the best time to schedule a cross-border meeting between Hong Kong and Riyadh?
There are 3 overlapping standard business hours (09:00 - 17:00) between Hong Kong and Riyadh. 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 Riyadh?
Yes. If either Hong Kong or Saudi Arabia observes seasonal Daylight Saving Time transitions, the offset difference shifts by one hour on scheduled transition dates.