Australian Eastern Daylight Time (aedt) is used in Australia. The IANA timezone identifier is Australia/Sydney.

Korea Standard Time (kst) is used in South Korea. The IANA timezone identifier is Asia/Seoul.

AEDT to KST Time Converter

Australian Eastern Daylight Time → Korea Standard Time

AEDT = UTC+10KST = UTC+9

ClockinSync

BASE

09:00

Work Clients Team +

00:0006:0012:0018:0024:00

KST (Seoul)

South Korea · -1h

08:00

London

United Kingdom · -9h

00:00

New York

USA · -14h

19:00-1 day

Tokyo

Japan · -1h

08:00

Dubai

United Arab Emirates · -6h

03:00

AEDT (Sydney) vs KST (Seoul) — time difference

AEDT (Sydney) is 1 hour ahead of KST (Seoul). When AEDT (Sydney) clocks hit noon, KST (Seoul) reads 11:00.

AEDT (Sydney) observes Australia/Sydney and KST (Seoul) observes Asia/Seoul — a 1 hour gap between them.

Shared working hours

Every working day, AEDT (Sydney) and KST (Seoul) are both in business hours for 7 hours simultaneously.

00:0006:0012:0018:0024:00

AEDT (Sydney)

KST (Seoul)

Overlap (7h)

Optimal meeting slots

AEDT (Sydney) and KST (Seoul) share 7 hours of business hours overlap daily. Showing the 3 most balanced slots — see the time table below for the full window.

10:00 Sydney / 09:00 Seoul✓ Both working

11:00 Sydney / 10:00 Seoul✓ Both working

12:00 Sydney / 11:00 Seoul✓ Both working

Assumes a standard 9 AM–5 PM workday in each location's local timezone.

Holiday calendar for both locations

⚡ Both locations have upcoming holidays, check availability before scheduling.

AEDT (Sydney)7 holidays

Aug 3Picnic Day

Sep 28King's Birthday

Oct 5Labour Day

Oct 5King's Birthday

Nov 3Melbourne Cup

KST (Seoul)7 holidays

Aug 15Liberation Day

Sep 24Chuseok

Sep 25Chuseok

Sep 26Chuseok

Oct 3National Foundation Day

Working across AEDT (Sydney) and KST (Seoul)

Coordinating between AEDT (Sydney) (Australia) and KST (Seoul) (South Korea) means working around a 1-hour time difference. The 7-hour overlap window gives both teams a natural slot for real-time collaboration without anyone working outside normal hours.

💡 Best practice for cross-timezone meetings

✅

Schedule at 10:00–11:00 (AEDT (Sydney)) for a 09:00–10:00 slot in KST (Seoul) — the sweet spot where both teams are working.

✅

Schedule at 11:00–12:00 (AEDT (Sydney)) for a 10:00–11:00 slot in KST (Seoul) — the sweet spot where both teams are working.

✅

Schedule at 12:00–13:00 (AEDT (Sydney)) for a 11:00–12:00 slot in KST (Seoul) — the sweet spot where both teams are working.

Recurring meetings are particularly vulnerable to DST shifts. The ClockinSync Chrome Extension alerts you before the offset changes.

Install ClockinSync Free →

Drag the slider at the top to convert any AEDT (Sydney) time instantly. You can also type natural language like "3pm", "15:00", or a location name to get an immediate answer.

AEDT (Sydney) ↔ KST (Seoul)

7h of business hours overlap daily (09:00–17:00)

AEDT (Sydney)

KST (Seoul)

00:00

23:00-1d

01:00

00:00

02:00

01:00

03:00

02:00

04:00

03:00

05:00

04:00

06:00

05:00

07:00

06:00

08:00

07:00

09:00Working

08:00off

10:00Working

09:00Working

11:00Working

10:00Working

12:00Working

11:00Working

13:00Working

12:00Working

14:00Working

13:00Working

15:00Working

14:00Working

16:00Working

15:00Working

17:00

16:00Working

18:00

17:00

19:00

18:00

20:00

19:00

21:00

20:00

22:00

21:00

23:00

22:00

Working hours: 09:00–17:00 local. Green = both working. Purple = one side only.

Frequently Asked Questions

What is the difference between aedt and kst?

Australian Eastern Daylight Time (aedt) is UTC+10 and Korea Standard Time (kst) is UTC+9. The difference between them is 1 hours.

Where is aedt used?

Australian Eastern Daylight Time (aedt) is used in Australia and surrounding regions. The IANA timezone identifier is Australia/Sydney.

Where is kst used?

Korea Standard Time (kst) is used in South Korea and surrounding regions. The IANA timezone identifier is Asia/Seoul.

How do I convert aedt to kst?

Use the interactive converter above. Drag the time slider to any aedt time and the kst equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.

Popular AEDT conversions

AEDT → London AEDT → New York AEDT → Tokyo AEDT → Dubai AEDT → Paris AEDT → Berlin AEDT → Singapore AEDT → Los Angeles AEDT → Toronto AEDT → Mumbai

Popular KST conversions

London → KST New York → KST Tokyo → KST Dubai → KST Sydney → KST Paris → KST Berlin → KST Singapore → KST Los Angeles → KST Toronto → KST