Ansan to Hong Kong Time Difference
Hong Kong is 1 hour behind Ansan. When it is noon in Ansan, it is 11:00 in Hong Kong.
Seoul (UTC+9) → Hong Kong (UTC+8)
🕐 Interactive Time Explorer
When it's 22:00 in Ansan, it's 21:00 in Hong Kong
Drag the slider to see corresponding times in both cities
🤝 Best Meeting Times
Ansan & Hong Kong✓ Perfect Match (7 hours)
◐ Extended Hours (2 hours)
✈️ Travel Information
Distance
2,063 km
Est. Flight Time
~3.4h
Time Difference
-1h
Work Hours Overlap
7h
Excellent
🔴 Office Closed
Today 10:00
10:00 - 17:00
⏰ Quick Conversion
06:00
Ansan
05:00
Hong Kong
09:00
Ansan
08:00
Hong Kong
12:00
Ansan
11:00
Hong Kong
15:00
Ansan
14:00
Hong Kong
18:00
Ansan
17:00
Hong Kong
21:00
Ansan
20:00
Hong Kong
00:00
Ansan
23:00
Hong Kong (-1)
03:00
Ansan
02:00
Hong Kong
Frequently Asked Questions
How many hours is Ansan ahead of Hong Kong?
Hong Kong is 1 hour behind Ansan. When it is 12:00 noon in Ansan, it is 11:00 in Hong Kong. Ansan operates on Asia/Seoul (UTC+9), while Hong Kong uses Asia/Hong Kong (UTC+8).
What is the best time to call Hong Kong from Ansan?
There are 8 hours of overlapping business time (9 AM–5 PM) between Ansan and Hong Kong. The best window is 10:00–18:00 Ansan time (09:00–17:00 in Hong Kong).
Does the Ansan to Hong Kong time difference change throughout the year?
The time difference can shift by up to one hour when either city observes Daylight Saving Time (DST). DST transition dates differ between countries — typically March/April in the Northern Hemisphere and October in the Southern Hemisphere. Always verify the live difference above when scheduling important meetings near DST changeover dates.
Flying between Ansan and Hong Kong
The distance between Ansan and Hong Kong is approximately 2,063 km. A direct flight typically takes around 3.4 hours. Your arrival clock will show local Hong Kong time — use our Flight Time Calculator to predict exact arrival times.