Seoul to Perth
-1hSeoul
KSTSOURCEPerth
AWSTGreen rows indicate typical business hours (9 AM - 5 PM)
KST and AWST on the World Map
The map below highlights the KST (Korea Standard Time) and AWST (Australian Western Standard Time) timezone regions across the globe.
KST – Korea Standard Time
UTC+09:00Korea Standard Time (KST) is the time zone for South Korea, 9 hours ahead of UTC.
- •South Korea does not observe daylight saving time.
- •Seoul is home to Samsung, LG, and Hyundai headquarters.
- •KST is the same offset as JST (UTC+09:00).
AWST – Australian Western Standard Time
UTC+08:00Australian Western Standard Time (AWST) is the time zone for Western Australia, 8 hours ahead of UTC.
- •Western Australia does not observe daylight saving time.
- •Perth is the most isolated major city in the world.
- •AWST is the same offset as China Standard Time and Singapore Time.
About Seoul
WikipediaSeoul operates on Korea Standard Time (KST), UTC+9, same as Japan. As a global tech and entertainment hub, Seoul coordinates with East Asian markets.
Seoul has the fastest average internet speed in the world.
About Perth
WikipediaPerth operates on Australian Western Time (AWST), UTC+8 with no daylight saving. As Australia's mining capital, Perth coordinates with Asian markets.
Western Australia does not observe daylight saving time.
Everything You Need to Know About Seoul and Perth Time
Seoul runs on Korean Standard Time (KST) at UTC+09:00. Perth runs on Australian Western Standard Time (AWST) at UTC+08:00. That puts Seoul 1 hour behind Perth — a difference of -1h at the current offsets.
In practice, when it is 9:00 AM in Seoul it is 8:00 AM in Perth. Midnight in Seoul is 11:00 PM in Perth. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Seoul to Perth time conversion table
| Seoul (KST) | Perth (AWST) | Day |
|---|---|---|
| 12:00 AM | 11:00 PM | previous day |
| 6:00 AM | 5:00 AM | same day |
| 7:00 AM | 6:00 AM | same day |
| 8:00 AM | 7:00 AM | same day |
| 9:00 AM | 8:00 AM | same day |
| 12:00 PM | 11:00 AM | same day |
| 3:00 PM | 2:00 PM | same day |
| 5:00 PM | 4:00 PM | same day |
| 6:00 PM | 5:00 PM | same day |
| 9:00 PM | 8:00 PM | same day |
Why people convert Seoul to Perth time
- Scheduling a call from Seoul to Perth: a 10:00 AM start in Seoul lands at 9:00 AM in Perth, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Seoul and Perth are inside the 9-to-5 working day between 10:00 AM and 5:00 PM KST time (9:00 AM–4:00 PM AWST). That is roughly 7 hours of usable overlap.
- Keeping family and friends in sync: knowing that 8:00 PM in Seoul is 7:00 PM in Perth makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM KST" is unambiguous; "3 PM" across a -1h gap is not.
- Block 10:00 AM–5:00 PM KST as the recurring meeting window if you work primarily from Seoul and need Perth colleagues present.
About KST (Korea Standard Time)
Korea Standard Time (KST) is the time zone used in South Korea. It shares the same UTC offset as Japan Standard Time but is a distinct time zone. South Korea does not observe daylight saving time. Seoul, the capital, is a major global tech and business hub.
About AWST (Australian Western Standard Time)
Australian Western Standard Time (AWST) is used in Western Australia. WA does not observe daylight saving time, having rejected it in multiple referendums. Perth is the most remote major city in the world.
Best time to call between Seoul and Perth
Both Seoul and Perth sit inside the 9 AM – 5 PM working day between 10:00 AM–5:00 PM KST, which is 9:00 AM–4:00 PM AWST. That gives roughly 7 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Seoul and Perth share 7 hours of working-hours overlap (10:00 AM–5:00 PM KST), so scheduling a live meeting is straightforward.
Seoul is 1 hour behind Perth (KST UTC+09:00 → AWST UTC+08:00). The shared working window is 10:00 AM–5:00 PM KST. Remember to re-check around daylight-saving transitions.
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between Seoul and Perth?
Seoul (KST, UTC+09:00) is 1 hour behind Perth (AWST, UTC+08:00). The gap is currently -1h.
How do I convert Seoul time to Perth time?
Add -1h to Seoul local time. For example, 9:00 AM in Seoul is 8:00 AM in Perth.
What time is it in Perth right now?
Perth uses AWST at UTC+08:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -1h offset from Seoul.
What is the best time to call Perth from Seoul?
Call between 10:00 AM and 5:00 PM KST — that maps to 9:00 AM–4:00 PM AWST and keeps both parties inside the working day.
Which is behind, Seoul or Perth?
Seoul is 1 hour behind Perth. When it is 12:00 PM in Seoul it is 11:00 AM in Perth.
Do Seoul and Perth use different time zones?
Seoul (South Korea) uses KST at UTC+09:00, while Perth (Australia) uses AWST at UTC+08:00. The IANA identifiers are Asia/Seoul and Australia/Perth.
Does daylight saving time affect the Seoul–Perth difference?
Neither zone observes daylight saving time, so the -1h offset between Seoul and Perth is fixed all year.
Which other cities share Seoul's time zone?
KST also covers Seoul, Busan, Incheon, Daegu, Daejeon, Pyongyang.
Which countries use KST, Seoul's zone?
KST is used in South Korea, North Korea.
Is there a day difference between Seoul and Perth?
Not normally. The -1h gap only pushes the date over the previous day.
What is the time difference between Seoul and Perth?
Perth is -1h from Seoul.
What timezone is Seoul in?
Seoul operates on Korea Standard Time (KST), UTC+9, same as Japan. As a global tech and entertainment hub, Seoul coordinates with East Asian markets.
What timezone is Perth in?
Perth operates on Australian Western Time (AWST), UTC+8 with no daylight saving. As Australia's mining capital, Perth coordinates with Asian markets.
What are the business hours in Seoul?
Standard business hours in Seoul are 9:00 AM - 6:00 PM KST.
What are the business hours in Perth?
Standard business hours in Perth are 9:00 AM - 5:00 PM AWST.
What is the best time to schedule a call between Seoul and Perth?
The best overlap for a call is when both cities are in business hours. Seoul works 9:00 AM - 6:00 PM KST and Perth works 9:00 AM - 5:00 PM AWST (-1h difference). Try scheduling during the overlapping window for maximum convenience.
What currencies are used in Seoul and Perth?
Seoul uses KRW (₩) while Perth uses AUD (A$). Check current exchange rates when planning travel or business between these cities.
How do Seoul and Perth compare in size?
Seoul has a population of approximately 9.7 million (metro: 25.5 million), while Perth has approximately 2.1 million (metro: 2.2 million).
What are the major landmarks in Seoul and Perth?
Seoul is known for Gyeongbokgung Palace, N Seoul Tower, Bukchon Hanok Village. Perth is famous for Kings Park, Perth Mint, Elizabeth Quay.
Do Seoul and Perth have stock exchanges?
Yes. Seoul has the KRX (Korea Exchange) and Perth has the ASX (via Sydney). The -1h time difference affects trading hour overlaps between these exchanges.
Which countries use KST (Korea Standard Time)?
KST is used in South Korea, North Korea.
Does KST observe daylight saving time?
No, KST does not observe daylight saving time and remains at UTC+09:00 year-round.
What are some interesting facts about KST?
South Korea does not observe daylight saving time. Seoul is home to Samsung, LG, and Hyundai headquarters.
Which cities are in the AWST timezone?
Major cities in the AWST timezone include Perth, Mandurah, Bunbury, Geraldton.
What is the UTC offset for AWST?
Australian Western Standard Time (AWST) is at UTC+08:00.
What should I know about the AWST timezone?
Western Australia does not observe daylight saving time. Perth is the most isolated major city in the world.
When is it midnight in Seoul, what time is it in Perth?
When it is 12:00 AM (midnight) in Seoul (KST), it is -1h later in Perth (AWST).
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