Seoul
Sydney
Convert KST to AEST
Korea Standard Time to Australian Eastern Standard Time — Sydney is 1 hour ahead of Seoul
Quick Facts
Time Difference
+1 hours
KST Full Name
Korea Standard Time
AEST Full Name
Australian Eastern Standard Time
KST to AEST Conversion Table
Related Conversions
About KST and AEST Time Zones
KST (Korea Standard Time) is UTC+9 and covers cities like Seoul, Busan, Incheon. AEST (Australian Eastern Standard Time) is UTC+10 and covers cities like Sydney, Melbourne, Brisbane.
When it's 12:00 PM (noon) in Seoul (KST), it's 1:00 PM in Sydney (AEST). The time difference between KST and AEST is 1 hour — Sydney is ahead of Seoul.
With only a 1-hour difference, Seoul and Sydney share nearly a full business day overlap, making scheduling straightforward.
Daylight Saving Time
AEST observes Daylight Saving Time and becomes AEDT (Australian Eastern Daylight Time) during summer months, shifting clocks forward by 1 hour to UTC+11.
During DST transitions, the time difference between KST and AEST may shift by ±1 hour. Always verify the current offset above for the most accurate conversion.
Use our world clock tool to compare Seoul and Sydney with a visual timeline, or browse more timezone conversions.
Frequently Asked Questions
What is the time difference between KST and AEST?
Sydney (AEST) is 1 hour ahead of Seoul (KST). The offset is +1 hours.
Is AEST ahead or behind KST?
AEST is 1 hour ahead of KST. KST is UTC+9 and AEST is UTC+10.
When it's 12:00 PM in Seoul, what time is it in Sydney?
When it's 12:00 PM (noon) in Seoul (KST), it's 1:00 PM in Sydney (AEST).
When it's 5:00 PM in Seoul, what time is it in Sydney?
When it's 5:00 PM in Seoul (KST), it's 6:00 PM in Sydney (AEST).
Does AEST change for Daylight Saving Time?
Yes. AEST (Australian Eastern Standard Time, UTC+10) becomes AEDT (Australian Eastern Daylight Time, UTC+11) in summer, shifting clocks forward 1 hour.