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