Seoul to Sydney: 2026 Time Difference & Best Meeting Times
Planning a call between Seoul (South Korea, KST, UTC+9) and Sydney (Australia, AEST/AEDT, UTC+10/+11)? Below is a live clock for both cities, a real-time offset calculation, and the best meeting window -- all computed in your browser using IANA time zone data so DST is always correct.DST alert: Sydney switches clocks (AEDT starts 1st Sunday in October, ends 1st Sunday in April). The time gap shifts by 1 hour during transitions. Re-check this page when seasons change.
Scheduling meetings between Seoul and Sydney in 2026
9-11am KST overlaps Australia; 4-6pm KST overlaps India + Europe morning. Morning AEST (7-9am) catches US West Coast afternoon; afternoon catches Asia morning.
For recurring meetings, remember that Sydney observes daylight saving while Seoul does not, so the gap shifts by 1 hour twice a year. A time that works in summer can drift by an hour in winter. ZonePlan recalculates every visit, so re-open this page (or the meeting planner) at the start of each season to confirm your standing slot still works.
Need to add a third or fourth city? The interactive meeting planner lets you stack as many locations as your team has and finds the overlap across all of them at once. Your city list is saved locally for next time.
About Seoul time zone
Seoul uses the KST time zone (UTC+9). Global tech powerhouse (Samsung, gaming); fast-paced remote culture. South Korea does not observe DST; stays UTC+9 year-round
About Sydney time zone
Sydney uses the AEST/AEDT time zone (UTC+10/+11). Australia's largest tech hub; strong APAC timezone bridge. Daylight saving: AEDT starts 1st Sunday in October, ends 1st Sunday in April.
Frequently Asked Questions: Seoul to Sydney
What is the time difference between Seoul and Sydney in 2026?
The time gap between Seoul (KST, UTC+9) and Sydney (AEST/AEDT, UTC+10/+11) varies with daylight saving. The live clock above always shows the current difference using IANA time zone data. Seoul does not observe DST. Sydney observes DST: AEDT starts 1st Sunday in October, ends 1st Sunday in April.
When it is 9:00 AM in Seoul, what time is it in Sydney?
Check the live hourly conversion table above. Because the offset shifts with DST, always look at the table (which uses today's date) rather than memorizing a fixed number. The green rows highlight when Sydney is in working hours (9am-5pm).
What is the best time to schedule a meeting between Seoul and Sydney?
The best meeting window is shown in the green banner above, calculated live for today's date. 9-11am KST overlaps Australia; 4-6pm KST overlaps India + Europe morning. When planning recurring meetings, re-check this page at the start of each season since DST transitions can shift the overlap by an hour.
Does Seoul observe daylight saving time?
No. Seoul (KST) does not observe daylight saving. South Korea does not observe DST; stays UTC+9 year-round
Does Sydney observe daylight saving time?
Yes. Sydney (AEST/AEDT) observes daylight saving. AEDT starts 1st Sunday in October, ends 1st Sunday in April. During DST the UTC offset is +11; during standard time it is UTC+10.
How does remote work culture differ between Seoul and Sydney?
Global tech powerhouse (Samsung, gaming); fast-paced remote culture. Meanwhile, Australia's largest tech hub; strong APAC timezone bridge. Understanding both work cultures helps pick meeting times that respect each side's norms.
Can I add more cities to the Seoul-Sydney comparison?
Yes. Use the interactive meeting planner to add as many cities as your team needs. It finds the overlap window across all cities at once and saves your list locally.
Why does the time difference between Seoul and Sydney change during the year?
When one city observes DST and the other does not, or when they switch on different dates, the gap shrinks or grows by one hour. Sydney shifts its clocks while Seoul stays fixed, so the difference changes by 1 hour when Sydney enters or exits DST. This page recalculates live so you always see the correct gap.