Live Synchronized Time Difference
SydneytoSeoulTime Difference
🇦🇺
Sydney
Australia (GMT+11)02:10:18UTC+11:00
🇰🇷
Seoul
South Korea (GMT+9)00:10:18UTC+9:00
Direct Distance8,329 km (5,175 miles)
Estimated Flight Time~10.3 hours
Business Overlap6 overlapping hours (9am–5pm)
Mutual Working Window: 6 Overlapping Hours
Recommended calling window between Sydney and Seoul
Off-Peak Calling Window
Sydney Time
11:00 AM – 5:00 PM
Seoul Time
9:00 AM – 3:00 PM
Both locations share 6 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 Sydney and Seoul.
Work (9am-5pm)ShoulderSleep / Off
| Sydney Time (Australia) | Seoul Time (South Korea) | Status & Recommendation |
|---|---|---|
| 00:00AM | 22:00PM-1 day | ⚪ Outside Work Hours |
| 01:00AM | 23:00PM-1 day | ⚪ Outside Work Hours |
| 02:00AM | 00:00AM | ⚪ Outside Work Hours |
| 03:00AM | 01:00AM | ⚪ Outside Work Hours |
| 04:00AM | 02:00AM | ⚪ Outside Work Hours |
| 05:00AM | 03:00AM | ⚪ Outside Work Hours |
| 06:00AM | 04:00AM | ⚪ Outside Work Hours |
| 07:00AM | 05:00AM | ⚪ Outside Work Hours |
| 08:00AM | 06:00AM | ⚪ Outside Work Hours |
| 09:00AM | 07:00AM | 🟡 Feasible (Shoulder Hour) |
| 10:00AM | 08:00AM | 🟡 Feasible (Shoulder Hour) |
| 11:00AM | 09:00AM | 🟢 Ideal Meeting Window |
| 12:00PM | 10:00AM | 🟢 Ideal Meeting Window |
| 13:00PM | 11:00AM | 🟢 Ideal Meeting Window |
| 14:00PM | 12:00PM | 🟢 Ideal Meeting Window |
| 15:00PM | 13:00PM | 🟢 Ideal Meeting Window |
| 16:00PM | 14:00PM | 🟢 Ideal Meeting Window |
| 17:00PM | 15:00PM | ⚪ Outside Work Hours |
| 18:00PM | 16:00PM | ⚪ Outside Work Hours |
| 19:00PM | 17:00PM | ⚪ Outside Work Hours |
| 20:00PM | 18:00PM | ⚪ Outside Work Hours |
| 21:00PM | 19:00PM | ⚪ Outside Work Hours |
| 22:00PM | 20:00PM | ⚪ Outside Work Hours |
| 23:00PM | 21:00PM | ⚪ Outside Work Hours |
Frequently Asked Questions
What is the time difference between Sydney and Seoul?
Seoul is 2 hours behind Sydney.
What is the best time to schedule a cross-border meeting between Sydney and Seoul?
There are 6 overlapping standard business hours (09:00 - 17:00) between Sydney and Seoul. The optimal window is when both parties are in their core working shifts.
Does daylight saving time (DST) affect the time difference between Sydney and Seoul?
Yes. If either Australia or South Korea observes seasonal Daylight Saving Time transitions, the offset difference shifts by one hour on scheduled transition dates.