Hong Kong to Ansan Time Difference
Ansan is 1 hour ahead of Hong Kong. When it is noon in Hong Kong, it is 13:00 in Ansan.
Hong Kong (UTC+8) → Seoul (UTC+9)
🕐 Interactive Time Explorer
When it's 18:00 in Hong Kong, it's 19:00 in Ansan
Drag the slider to see corresponding times in both cities
🤝 Best Meeting Times
Hong Kong & Ansan✓ 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 09:00
09:00 - 16:00
⏰ Quick Conversion
06:00
Hong Kong
07:00
Ansan
09:00
Hong Kong
10:00
Ansan
12:00
Hong Kong
13:00
Ansan
15:00
Hong Kong
16:00
Ansan
18:00
Hong Kong
19:00
Ansan
21:00
Hong Kong
22:00
Ansan
00:00
Hong Kong
01:00
Ansan
03:00
Hong Kong
04:00
Ansan
Frequently Asked Questions
How many hours is Hong Kong behind Ansan?
Ansan is 1 hour ahead of Hong Kong. When it is 12:00 noon in Hong Kong, it is 13:00 in Ansan. Hong Kong operates on Asia/Hong Kong (UTC+8), while Ansan uses Asia/Seoul (UTC+9).
What is the best time to call Ansan from Hong Kong?
There are 7 hours of overlapping business time (9 AM–5 PM) between Hong Kong and Ansan. The best window is 09:00–16:00 Hong Kong time (10:00–17:00 in Ansan).
Does the Hong Kong to Ansan 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 Hong Kong and Ansan
The distance between Hong Kong and Ansan is approximately 2,063 km. A direct flight typically takes around 3.4 hours. Your arrival clock will show local Ansan time — use our Flight Time Calculator to predict exact arrival times.