Sydney to Seoul Time
AEST to KST Converter — 9 AM AEST is 8:00 AM KST
Sydney is 1 hour ahead of Seoul. Convert any time between Sydney (AEST/AEDT) and Seoul (KST) instantly.
Sydney
Australia
Seoul
South Korea
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Time Zone Comparison
Sydney to Seoul Time Conversion Table
| Sydney (AEST) | Seoul (KST) |
|---|---|
| 1:00 AM | 11:00 PM |
| 2:00 AM | 1:00 AM |
| 4:00 AM | 3:00 AM |
| 6:00 AM | 5:00 AM |
| 8:00 AM | 7:00 AM |
| 10:00 AM | 9:00 AM |
| 12:00 PM | 11:00 AM |
| 2:00 PM | 1:00 PM |
| 4:00 PM | 3:00 PM |
| 6:00 PM | 5:00 PM |
| 8:00 PM | 7:00 PM |
| 10:00 PM | 9:00 PM |
Sydney & Seoul — Business & Scheduling Guide
Sydney (Australia) is a stable, resource-rich economy in the Asia-Pacific region, with key industries in mining, agriculture, finance, and tourism. Seoul (South Korea) is a technology-driven economy known for rapid innovation, known for semiconductors, automotive, shipbuilding, and K-content. With a 1-hour time difference, professionals frequently schedule cross-border calls between these two cities for international trade, remote team collaboration, and client meetings.
Scheduling Meetings Between Sydney and Seoul
With only a 1-hour gap, Sydney and Seoul have generous overlapping work hours. Morning calls in the earlier time zone align well with mid-day in the other. Australian work culture values work-life balance, with typical hours of 9 AM–5 PM and flexible arrangements common. South Korean work culture is fast-paced with typical hours of 9 AM–6 PM, though recent reforms have reduced maximum weekly hours. Most teams find that late morning to early afternoon offers the widest window for collaboration.
Daylight Saving Time Considerations
Sydney observes Daylight Saving Time (AEST/AEDT), but Seoul does not — it stays on KST year-round. This means the time difference between Sydney and Seoul changes by 1 hour when Sydney switches clocks. During Australia's summer, the gap is 0–2 hours instead of the standard 1 hours. Mark DST transition dates on your calendar to avoid missed meetings.
AEST to KST — Quick Reference
AEST (AEST/AEDT) stands for the timezone used in Sydney, Australia (UTC+10). KST (KST) is the timezone used in Seoul, South Korea (UTC+9). Sydney is 1 hour ahead of Seoul.
To convert AEST to KST, subtract 1 hours from AEST time. For example, AEST 9:00 AM = KST 8:00 AM.
Key Facts
- •Time difference: Sydney (UTC+10) is 1 hour ahead of Seoul (UTC+9).
- •Daylight Saving Time: Sydney observes DST (AEST/AEDT). Seoul does not observe DST (KST).
- •Regions: Sydney is located in Australia and uses the AEST/AEDT time zone. Seoul is located in South Korea and uses the KST time zone.
- •Best time to call: The best time to call between Sydney and Seoul is 10:00 AM to 4:00 PM in Sydney time, when both cities have overlapping standard working hours.
Frequently Asked Questions
What is the time difference between Sydney and Seoul?
Sydney is 1 hour ahead of Seoul.
What time is it in Seoul when it's 9 AM in Sydney?
When it's 9:00 AM in Sydney, it is 8:00 AM in Seoul.
What time is 9 PM AEST in KST?
9 PM AEST (Sydney time) is 8:00 PM KST (Seoul time). This is a common time people check when scheduling evening calls across these two time zones.
When is the best time to schedule a meeting between Sydney and Seoul?
The best time to schedule a meeting is between 10:00 AM to 4:00 PM in Sydney time, when both cities are within standard working hours (9 AM – 5 PM). This gives you the maximum overlap window for real-time collaboration.
How do I convert AEST to KST?
AEST (AEST/AEDT) is the timezone for Sydney, Australia (UTC+10). KST (KST) is the timezone for Seoul, South Korea (UTC+9). Sydney is 1 hour ahead of Seoul. Quick examples: 9 AM AEST = 8:00 AM KST, 12 PM AEST = 11:00 AM KST, 3 PM AEST = 2:00 PM KST, 6 PM AEST = 5:00 PM KST.
Is Sydney ahead of or behind Seoul?
Sydney is 1 hour ahead of Seoul. When it's noon in Sydney, it's 11:00 AM in Seoul.
Does Sydney or Seoul change clocks for Daylight Saving Time?
Yes, Sydney observes DST and switches between AEST/AEDT. Seoul does not observe DST — it stays on KST year-round. Because only one city observes DST, the time difference shifts by 1 hour during transition periods (typically March/April and October/November).
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