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  1. WorldClockTools
  2. Zeitzonen-Umrechner
  3. KST -> AEST

Timezone converter

KST zu AEST Konverter.

KST → AESTGap: +1h7h 9-5 overlap

KST to AEST currently uses Korean Time in Asia/Seoul and Australian Eastern Time in Australia/Sydney as the live reference pair. Right now the gap is +1h, and the sections below break that into meeting-time shortcuts, workday overlap, DST changes, and city coverage on both sides.

Last updated Apr 22, 2026. Offset math, DST behavior, and city coverage on both sides are refreshed from the live timezone dataset during the page revalidation window.

Reverse: AEST → KST

From

KST

Korean Time

Asia/Seoul · GMT+9 +09:00

--:--:--

Major markets in this grouping include Seoul, Busan, Pyongyang, Incheon.

To

AEST

Australian Eastern Time

Australia/Sydney · GMT+10 +10:00

--:--:--

Major markets in this grouping include Sydney, Brisbane, Gold Coast, Newcastle.

Scheduling snapshot

Current gap

+1h

KST +09:00 vs AEST +10:00

9-to-5 overlap

7h

KST 9:00 AM previous day to 4:00 PM previous day

Representative countries

South Korea and North Korea / Australia

Based on the busiest city and zone usage found in the current dataset.

Pair context

KST and AEST currently connect Seoul and Sydney with a live gap of +1h. Representative coverage on the KST side is anchored by Seoul, Busan, Pyongyang, and Incheon, while the AEST side is anchored by Sydney, Brisbane, Gold Coast, and Newcastle.

Using a simple 9:00 AM to 5:00 PM workday on both sides, the pair shares about 7 hours of business overlap - roughly KST 9:00 AM previous day to 4:00 PM previous day, which is AEST 10:00 AM previous day to 5:00 PM previous day. Most of the workday still lines up, which is helpful for live support, same-day reviews, and straightforward calendar invites.

The live gap is +1h right now, based on Asia/Seoul at +09:00 and Australia/Sydney at +10:00. Australia/Sydney changes offset on October 4, 2026, so the gap moves to +2h after that transition.

Market coverage on both sides

On the KST side, the current dataset is anchored by cities such as Seoul, South Korea; Busan, South Korea; Pyongyang, North Korea; Incheon, South Korea; Daegu, South Korea; Daejeon, South Korea. That makes this page useful for real-world coordination patterns rather than only abstract offset math.

On the AEST side, the live reference set includes Sydney, Australia; Brisbane, Australia; Gold Coast, Australia; Newcastle, Australia; Canberra, Australia; Central Coast, Australia. In practice, that means the conversion is tied to recognizable business, travel, and support hubs rather than a single anonymous timezone label.

Country usage on the two sides currently includes South Korea and North Korea for KST and Australia for AEST. That country coverage helps explain why some pairs feel like outsourcing, logistics, gaming, finance, or travel-heavy conversions while others are more niche.

Digit-Roll Converter

Adjust the time — digits roll like an odometer. Swap button flips the zones.

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Common meeting times

KST to AEST meeting times

Quick conversions for 9 AM, noon, 3 PM, 6 PM, and 9 PM based on today's local calendar.

KSTAESTDay relation
9:00 AM10:00 AMThu, Apr 23same day
12:00 PM1:00 PMThu, Apr 23same day
3:00 PM4:00 PMThu, Apr 23same day
6:00 PM7:00 PMThu, Apr 23same day
9:00 PM10:00 PMThu, Apr 23same day

AEST to KST meeting times

Quick conversions for 9 AM, noon, 3 PM, 6 PM, and 9 PM based on today's local calendar.

AESTKSTDay relation
9:00 AM8:00 AMThu, Apr 23same day
12:00 PM11:00 AMThu, Apr 23same day
3:00 PM2:00 PMThu, Apr 23same day
6:00 PM5:00 PMThu, Apr 23same day
9:00 PM8:00 PMThu, Apr 23same day

Operational notes

KST to AEST meeting times is easiest to read as a working-day range rather than a single spot conversion. In the current snapshot, 9:00 AM lands at 10:00 AM, while 9:00 PM lands at 10:00 PM, which makes the practical handoff window much easier to scan.

AEST to KST meeting times is easiest to read as a working-day range rather than a single spot conversion. In the current snapshot, 9:00 AM lands at 8:00 AM, while 9:00 PM lands at 8:00 PM, which makes the practical handoff window much easier to scan.

Popular hour answers

These direct answers are here for the exact-intent searches people actually use, like “10 AM KST to AEST” or “4 PM KST in AEST”.

8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM9 PM

What is 8 AM KST in AEST?

8 AM KST = 9:00 AM AEST (09:00). On today's live calendar that lands on Thu, Apr 23 in AEST, which means the answer is a same day conversion rather than a static offset lookup.

What is 9 AM KST in AEST?

9 AM KST = 10:00 AM AEST (10:00). On today's live calendar that lands on Thu, Apr 23 in AEST, which means the answer is a same day conversion rather than a static offset lookup.

What is 10 AM KST in AEST?

10 AM KST = 11:00 AM AEST (11:00). On today's live calendar that lands on Thu, Apr 23 in AEST, which means the answer is a same day conversion rather than a static offset lookup.

What is 11 AM KST in AEST?

11 AM KST = 12:00 PM AEST (12:00). On today's live calendar that lands on Thu, Apr 23 in AEST, which means the answer is a same day conversion rather than a static offset lookup.

What is 12 PM KST in AEST?

12 PM KST = 1:00 PM AEST (13:00). On today's live calendar that lands on Thu, Apr 23 in AEST, which means the answer is a same day conversion rather than a static offset lookup.

What is 1 PM KST in AEST?

1 PM KST = 2:00 PM AEST (14:00). On today's live calendar that lands on Thu, Apr 23 in AEST, which means the answer is a same day conversion rather than a static offset lookup.

What is 2 PM KST in AEST?

2 PM KST = 3:00 PM AEST (15:00). On today's live calendar that lands on Thu, Apr 23 in AEST, which means the answer is a same day conversion rather than a static offset lookup.

What is 3 PM KST in AEST?

3 PM KST = 4:00 PM AEST (16:00). On today's live calendar that lands on Thu, Apr 23 in AEST, which means the answer is a same day conversion rather than a static offset lookup.

What is 4 PM KST in AEST?

4 PM KST = 5:00 PM AEST (17:00). On today's live calendar that lands on Thu, Apr 23 in AEST, which means the answer is a same day conversion rather than a static offset lookup.

What is 5 PM KST in AEST?

5 PM KST = 6:00 PM AEST (18:00). On today's live calendar that lands on Thu, Apr 23 in AEST, which means the answer is a same day conversion rather than a static offset lookup.

What is 6 PM KST in AEST?

6 PM KST = 7:00 PM AEST (19:00). On today's live calendar that lands on Thu, Apr 23 in AEST, which means the answer is a same day conversion rather than a static offset lookup.

What is 9 PM KST in AEST?

9 PM KST = 10:00 PM AEST (22:00). On today's live calendar that lands on Thu, Apr 23 in AEST, which means the answer is a same day conversion rather than a static offset lookup.

Overlap window and DST radar

The live gap is +1h right now, based on Asia/Seoul at +09:00 and Australia/Sydney at +10:00. Australia/Sydney changes offset on October 4, 2026, so the gap moves to +2h after that transition.

The most usable workday block right now is about 7 hours: KST 9:00 AM previous day to 4:00 PM previous day, which lines up with AEST 10:00 AM previous day to 5:00 PM previous day.

Australia/Sydney changes from +11:00 (GMT+11) to +11:00 (GMT+11) on October 4, 2026 at about 3:24 AM.

Reference zones

Asia/Seoul

GMT+9 · +09:00

Australia/Sydney

GMT+10 · +10:00

These are the busiest live references selected from the abbreviation families on this page.

Umrechnungstabelle

KSTAEST
09:0010:00
10:0011:00
11:0012:00
12:0013:00
13:0014:00
14:0015:00
15:0016:00
16:0017:00
17:0018:00
18:0019:00
19:0020:00
20:0021:00
21:0022:00
22:0023:00
23:0000:00
00:0001:00
01:0002:00
02:0003:00
03:0004:00
04:0005:00
05:0006:00
06:0007:00
07:0008:00
08:0009:00

Top cities using KST

Countries represented here include South Korea and North Korea.

SeoulSouth KoreaBusanSouth KoreaPyongyangNorth KoreaIncheonSouth KoreaDaeguSouth KoreaDaejeonSouth KoreaGwangjuSouth KoreaSuwonSouth KoreaUlsanSouth KoreaGoyang-siSouth Korea

Top cities using AEST

Countries represented here include Australia.

SydneyAustraliaBrisbaneAustraliaGold CoastAustraliaNewcastleAustraliaCanberraAustraliaCentral CoastAustraliaSunshine CoastAustraliaLogan CityAustraliaWollongongAustraliaTownsvilleAustralia

FAQ

How many hours is AEST ahead of KST?
AEST is currently +1h relative to KST, using Asia/Seoul and Australia/Sydney as the live reference zones on this page.
What is the best workday overlap between KST and AEST?
The current 9-to-5 overlap is about 7 hours: KST 9:00 AM previous day to 4:00 PM previous day, which matches AEST 10:00 AM previous day to 5:00 PM previous day.
Does the KST-AEST time difference change during DST?
The live gap is +1h right now, based on Asia/Seoul at +09:00 and Australia/Sydney at +10:00. Australia/Sydney changes offset on October 4, 2026, so the gap moves to +2h after that transition.
Which cities commonly use KST and AEST?
KST commonly covers cities such as Seoul, Busan, Pyongyang, and Incheon, while AEST commonly covers cities such as Sydney, Brisbane, Gold Coast, and Newcastle.
Should I use KST/AEST or exact IANA zones?
Use the abbreviations for a quick read, but use exact IANA zones such as Asia/Seoul and Australia/Sydney when you need something precise in software, travel plans, or long-range scheduling.
Interaktiven Konverter öffnen

Verwandte Umrechnungen

EST → AESTEST → KSTPST → AESTPST → KSTCST → AESTCST → KSTMST → AESTMST → KSTGMT → AESTGMT → KSTUTC → AESTUTC → KST

Related planning pages

Once a conversion pair matters, people usually need a city page, compare page, or a broader browse surface next.

Interactive converter

Move from this static pair into the full timezone converter with more cities and abbreviations.

Compare city pairs

Use compare pages when the practical question is overlap, not just offset arithmetic.

World clock

Open live city clocks after narrowing the timezone pair you care about.

Browse city pages

Jump into the strongest city pages when you want location-specific timezone context.