Sydney to Ulsan Time Difference
Ulsan is 1 hour behind Sydney. When it is noon in Sydney, it is 11:00 in Ulsan.
Sydney (UTC+10) → Seoul (UTC+9)
🕐 Interactive Time Explorer
When it's 20:00 in Sydney, it's 19:00 in Ulsan
Drag the slider to see corresponding times in both cities
🤝 Best Meeting Times
Sydney & Ulsan✓ Perfect Match (7 hours)
◐ Extended Hours (2 hours)
✈️ Travel Information
Distance
8,047 km
Est. Flight Time
~10.5h
Time Difference
-1h
Work Hours Overlap
7h
Excellent
🔴 Office Closed
Today 10:00
10:00 - 17:00
⏰ Quick Conversion
06:00
Sydney
05:00
Ulsan
09:00
Sydney
08:00
Ulsan
12:00
Sydney
11:00
Ulsan
15:00
Sydney
14:00
Ulsan
18:00
Sydney
17:00
Ulsan
21:00
Sydney
20:00
Ulsan
00:00
Sydney
23:00
Ulsan (-1)
03:00
Sydney
02:00
Ulsan
Frequently Asked Questions
How many hours is Sydney ahead of Ulsan?
Ulsan is 1 hour behind Sydney. When it is 12:00 noon in Sydney, it is 11:00 in Ulsan. Sydney operates on Australia/Sydney (UTC+10), while Ulsan uses Asia/Seoul (UTC+9).
What is the best time to call Ulsan from Sydney?
There are 8 hours of overlapping business time (9 AM–5 PM) between Sydney and Ulsan. The best window is 10:00–18:00 Sydney time (09:00–17:00 in Ulsan).
Does the Sydney to Ulsan 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 Sydney and Ulsan
The distance between Sydney and Ulsan is approximately 8,047 km. A direct flight typically takes around 10.5 hours. Your arrival clock will show local Ulsan time — use our Flight Time Calculator to predict exact arrival times.