South Korea to Vienna
-7hSouth Korea
KSTSOURCEVienna
CESTGreen rows indicate typical business hours (9 AM - 5 PM)
KST and CEST on the World Map
The map below highlights the KST (Korea Standard Time) and CEST (Central European 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).
CET – Central European Time
UTC+01:00Central European Time (CET) is used across most of Western and Central Europe, 1 hour ahead of UTC.
- •CET covers more European countries than any other time zone.
- •Spain uses CET despite being geographically aligned with GMT/WET.
- •The Frankfurt Stock Exchange, Euronext (Amsterdam/Paris), and Borsa Italiana operate on CET.
- •Over 500 million people live in the CET time zone.
- •France moved to CET during the German occupation in WWII and never switched back.
About Vienna
WikipediaVienna operates on Central European Time (CET/CEST). As a major EU hub and headquarters for international organizations, Vienna coordinates Central European business.
Vienna has more than 50 theaters and opera houses.
Everything You Need to Know About South Korea and Vienna Time
South Korea runs on Korean Standard Time (KST) at UTC+09:00. Vienna runs on Central European Summer Time (CEST) at UTC+02:00, also currently on daylight saving time. That puts South Korea 7 hours behind Vienna — a difference of -7h at the current offsets.
In practice, when it is 9:00 AM in South Korea it is 2:00 AM in Vienna. Midnight in South Korea is 5:00 PM in Vienna.Vienna observes daylight saving time while South Korea does not, so the gap narrows or widens by an hour part of the year.
South Korea to Vienna time conversion table
| South Korea (KST) | Vienna (CEST) | Day |
|---|---|---|
| 12:00 AM | 5:00 PM | previous day |
| 6:00 AM | 11:00 PM | previous day |
| 7:00 AM | 12:00 AM | same day |
| 8:00 AM | 1:00 AM | same day |
| 9:00 AM | 2:00 AM | same day |
| 12:00 PM | 5:00 AM | same day |
| 3:00 PM | 8:00 AM | same day |
| 5:00 PM | 10:00 AM | same day |
| 6:00 PM | 11:00 AM | same day |
| 9:00 PM | 2:00 PM | same day |
Why people convert South Korea to Vienna time
- Scheduling a call from South Korea to Vienna: a 10:00 AM start in South Korea lands at 3:00 AM in Vienna, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both South Korea and Vienna are inside the 9-to-5 working day between 4:00 PM and 5:00 PM KST time (9:00 AM–10:00 AM CEST). That is roughly 1 hours of usable overlap.
- Booking travel or deliveries: tracking Vienna local time against South Korea keeps pickup windows and arrival estimates honest across the -7h offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM KST" is unambiguous; "3 PM" across a -7h gap is not.
- Block 4:00 PM–5:00 PM KST as the recurring meeting window if you work primarily from South Korea and need Vienna colleagues present.
- Vienna: Clocks fall back on Sun, Oct 25, 2026. Any meeting series spanning that date will shift by an hour in local time.
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 CET (Central European Time)
Central European Time (CET) is the standard time zone for most of Europe, covering over 30 countries from Spain to Poland, and from Norway to Italy. CET is 1 hour ahead of GMT and is used by the European Union's most populous nations. During summer, most CET countries switch to Central European Summer Time (CEST, UTC+02:00). Major European financial markets in Frankfurt, Paris, and Amsterdam operate on CET.
Best time to call between South Korea and Vienna
Both South Korea and Vienna sit inside the 9 AM – 5 PM working day between 4:00 PM–5:00 PM KST, which is 9:00 AM–10:00 AM CEST. That gives roughly 1 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
South Korea and Vienna overlap for only 60 minutes (4:00 PM–5:00 PM KST), so meetings have to be booked precisely.
South Korea is 7 hours behind Vienna (KST UTC+09:00 → CEST UTC+02:00). The shared working window is 4:00 PM–5:00 PM KST. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
South Korea
Does not observe DST
Vienna
☀ Currently in DST
Standard: UTC+01:00 · DST: UTC+02:00
Clocks fall back on Sun, Oct 25, 2026
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 South Korea and Vienna?
South Korea (KST, UTC+09:00) is 7 hours behind Vienna (CEST, UTC+02:00). The gap is currently -7h.
How do I convert South Korea time to Vienna time?
Add -7h to South Korea local time. For example, 9:00 AM in South Korea is 2:00 AM in Vienna.
What time is it in Vienna right now?
Vienna uses CEST at UTC+02:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -7h offset from South Korea.
What is the best time to call Vienna from South Korea?
Call between 4:00 PM and 5:00 PM KST — that maps to 9:00 AM–10:00 AM CEST and keeps both parties inside the working day.
Which is behind, South Korea or Vienna?
South Korea is 7 hours behind Vienna. When it is 12:00 PM in South Korea it is 5:00 AM in Vienna.
Do South Korea and Vienna use different time zones?
South Korea (South Korea) uses KST at UTC+09:00, while Vienna (Austria) uses CEST at UTC+02:00. The IANA identifiers are Asia/Seoul and Europe/Vienna.
Does daylight saving time affect the South Korea–Vienna difference?
Yes at the moment: Vienna is on daylight saving time and South Korea is not, so the -7h gap shifts by an hour when exactly one of them changes clocks.
Which other cities share South Korea's time zone?
KST also covers Seoul, Busan, Incheon, Daegu, Daejeon, Pyongyang.
Which countries use KST, South Korea's zone?
KST is used in South Korea, North Korea.
Is there a day difference between South Korea and Vienna?
Not normally. The -7h gap only pushes the date over the previous day.
What is the time difference between South Korea and Vienna?
Vienna is -7h from South Korea.
What timezone is South Korea in?
South Korea operates on its local timezone.
What timezone is Vienna in?
Vienna operates on Central European Time (CET/CEST). As a major EU hub and headquarters for international organizations, Vienna coordinates Central European business.
What are the business hours in Vienna?
Standard business hours in Vienna are 8:00 AM - 5:00 PM CET.
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 CET timezone?
Major cities in the CET timezone include Paris, Berlin, Rome, Madrid, Amsterdam, Brussels, Vienna, Warsaw.
What is the UTC offset for CET?
Central European Time (CET) is at UTC+01:00. During daylight saving time, it shifts to CEST.
What should I know about the CET timezone?
CET covers more European countries than any other time zone. Spain uses CET despite being geographically aligned with GMT/WET.
When is it midnight in South Korea, what time is it in Vienna?
When it is 12:00 AM (midnight) in South Korea (KST), it is -7h later in Vienna (CET).
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