KST to AWST
-1hKST
KSTSOURCEAWST
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.
Comparing Time Zones: KST and AWST
KST runs on Korea Standard Time (KST) at UTC+09:00. AWST runs on Australian Western Standard Time (AWST) at UTC+08:00. That puts KST 1 hour behind AWST — a difference of -1h at the current offsets.
In practice, when it is 9:00 AM in KST it is 8:00 AM in AWST. Midnight in KST is 11:00 PM in AWST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
KST to AWST time conversion table
| KST (KST) | AWST (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 KST to AWST time
- Scheduling a call from KST to AWST: a 10:00 AM start in KST lands at 9:00 AM in AWST, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both KST and AWST 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 KST is 7:00 PM in AWST 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 KST and need AWST 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 KST and AWST
Both KST and AWST 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
KST and AWST share 7 hours of working-hours overlap (10:00 AM–5:00 PM KST), so scheduling a live meeting is straightforward.
KST is 1 hour behind AWST (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 KST and AWST?
KST (KST, UTC+09:00) is 1 hour behind AWST (AWST, UTC+08:00). The gap is currently -1h.
How do I convert KST time to AWST time?
Add -1h to KST local time. For example, 9:00 AM in KST is 8:00 AM in AWST.
What time is it in AWST right now?
AWST 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 KST.
What is the best time to call AWST from KST?
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, KST or AWST?
KST is 1 hour behind AWST. When it is 12:00 PM in KST it is 11:00 AM in AWST.
Does daylight saving time affect the KST–AWST difference?
Neither zone observes daylight saving time, so the -1h offset between KST and AWST is fixed all year.
Which other cities share KST's time zone?
KST also covers Seoul, Busan, Incheon, Daegu, Daejeon, Pyongyang.
Which countries use KST, KST's zone?
KST is used in South Korea, North Korea.
Is there a day difference between KST and AWST?
Not normally. The -1h gap only pushes the date over the previous day.
What is the time difference between KST and AWST?
AWST is -1h from KST.
What timezone is KST in?
KST operates on its local timezone.
What timezone is AWST in?
AWST operates on its local timezone.
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 KST, what time is it in AWST?
When it is 12:00 AM (midnight) in KST (KST), it is -1h later in AWST (AWST).
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