Oslo to Seoul
+7hOslo
CESTSOURCESeoul
KSTGreen rows indicate typical business hours (9 AM - 5 PM)
CEST and KST on the World Map
The map below highlights the CEST (Central European Time) and KST (Korea Standard Time) timezone regions across the globe.
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.
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).
About Oslo
WikipediaOslo operates on Central European Time (CET/CEST). As home to the world's largest sovereign wealth fund and major oil firms, Oslo influences global energy markets.
Oslo aims to be car-free by 2030.
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.
Everything You Need to Know About Oslo and Seoul Time
Oslo runs on Central European Summer Time (CEST) at UTC+02:00, currently observing daylight saving time. Seoul runs on Korean Standard Time (KST) at UTC+09:00. That puts Oslo 7 hours ahead of Seoul — a difference of +7h at the current offsets.
In practice, when it is 9:00 AM in Oslo it is 4:00 PM in Seoul. Midnight in Oslo is 7:00 AM in Seoul.Oslo observes daylight saving time while Seoul does not, so the gap narrows or widens by an hour part of the year.
Oslo to Seoul time conversion table
| Oslo (CEST) | Seoul (KST) | Day |
|---|---|---|
| 12:00 AM | 7:00 AM | same day |
| 6:00 AM | 1:00 PM | same day |
| 7:00 AM | 2:00 PM | same day |
| 8:00 AM | 3:00 PM | same day |
| 9:00 AM | 4:00 PM | same day |
| 12:00 PM | 7:00 PM | same day |
| 3:00 PM | 10:00 PM | same day |
| 5:00 PM | 12:00 AM | next day |
| 6:00 PM | 1:00 AM | next day |
| 9:00 PM | 4:00 AM | next day |
Why people convert Oslo to Seoul time
- Scheduling a call from Oslo to Seoul: a 10:00 AM start in Oslo lands at 5:00 PM in Seoul, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Oslo and Seoul are inside the 9-to-5 working day between 9:00 AM and 10:00 AM CEST time (4:00 PM–5:00 PM KST). That is roughly 1 hours of usable overlap.
- Coordinating a Oslo-based team with Seoul contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.
- Always state the zone abbreviation, not just the hour. "3:00 PM CEST" is unambiguous; "3 PM" across a +7h gap is not.
- Block 9:00 AM–10:00 AM CEST as the recurring meeting window if you work primarily from Oslo and need Seoul colleagues present.
- Oslo: Clocks fall back on Sun, Oct 25, 2026. Re-check this page after that date because the offset changes and so does the +7h gap.
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.
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.
Best time to call between Oslo and Seoul
Both Oslo and Seoul sit inside the 9 AM – 5 PM working day between 9:00 AM–10:00 AM CEST, which is 4:00 PM–5:00 PM KST. That gives roughly 1 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Oslo and Seoul overlap for only 60 minutes (9:00 AM–10:00 AM CEST), so meetings have to be booked precisely.
Oslo is 7 hours ahead of Seoul (CEST UTC+02:00 → KST UTC+09:00). The shared working window is 9:00 AM–10:00 AM CEST. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
Oslo
☀ Currently in DST
Standard: UTC+01:00 · DST: UTC+02:00
Clocks fall back on Sun, Oct 25, 2026
Seoul
Does not observe DST
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 Oslo and Seoul?
Oslo (CEST, UTC+02:00) is 7 hours ahead of Seoul (KST, UTC+09:00). The gap is currently +7h.
How do I convert Oslo time to Seoul time?
Add +7h to Oslo local time. For example, 9:00 AM in Oslo is 4:00 PM in Seoul.
What time is it in Seoul right now?
Seoul uses KST at UTC+09:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +7h offset from Oslo.
What is the best time to call Seoul from Oslo?
Call between 9:00 AM and 10:00 AM CEST — that maps to 4:00 PM–5:00 PM KST and keeps both parties inside the working day.
Which is ahead, Oslo or Seoul?
Oslo is 7 hours ahead of Seoul. When it is 12:00 PM in Oslo it is 7:00 PM in Seoul.
Do Oslo and Seoul use different time zones?
Oslo (Norway) uses CEST at UTC+02:00, while Seoul (South Korea) uses KST at UTC+09:00. The IANA identifiers are Europe/Oslo and Asia/Seoul.
Does daylight saving time affect the Oslo–Seoul difference?
Yes at the moment: Oslo is on daylight saving time and Seoul is not, so the +7h gap shifts by an hour when exactly one of them changes clocks.
Which other cities share Oslo's time zone?
CEST also covers Paris, Berlin, Rome, Madrid, Amsterdam, Brussels, Vienna, Warsaw and 10 more.
Which countries use CEST, Oslo's zone?
CEST is used in Germany, France, Italy, Spain, Netherlands, Belgium, Austria, Switzerland and 19 more.
Is there a day difference between Oslo and Seoul?
Not normally. The +7h gap only pushes the date over for late-evening times.
What is the time difference between Oslo and Seoul?
Seoul is +7h from Oslo.
What timezone is Oslo in?
Oslo operates on Central European Time (CET/CEST). As home to the world's largest sovereign wealth fund and major oil firms, Oslo influences global energy markets.
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 are the business hours in Oslo?
Standard business hours in Oslo are 8:00 AM - 4:00 PM CET.
What are the business hours in Seoul?
Standard business hours in Seoul are 9:00 AM - 6:00 PM KST.
What is the best time to schedule a call between Oslo and Seoul?
The best overlap for a call is when both cities are in business hours. Oslo works 8:00 AM - 4:00 PM CET and Seoul works 9:00 AM - 6:00 PM KST (+7h difference). Try scheduling during the overlapping window for maximum convenience.
What currencies are used in Oslo and Seoul?
Oslo uses NOK (kr) while Seoul uses KRW (₩). Check current exchange rates when planning travel or business between these cities.
How do Oslo and Seoul compare in size?
Oslo has a population of approximately 693,000 (metro: 1.5 million), while Seoul has approximately 9.7 million (metro: 25.5 million).
What are the major landmarks in Oslo and Seoul?
Oslo is known for Oslo Opera House, Vigeland Park, Akershus Fortress. Seoul is famous for Gyeongbokgung Palace, N Seoul Tower, Bukchon Hanok Village.
Do Oslo and Seoul have stock exchanges?
Yes. Oslo has the OSE (Oslo Stock Exchange) and Seoul has the KRX (Korea Exchange). The +7h time difference affects trading hour overlaps between these exchanges.
Which countries use CET (Central European Time)?
CET is used in Germany, France, Italy, Spain, Netherlands, Belgium, and 21 more countries.
Does CET observe daylight saving time?
Yes, CET switches to CEST during summer months.
What are some interesting facts about CET?
CET covers more European countries than any other time zone. Spain uses CET despite being geographically aligned with GMT/WET.
Which cities are in the KST timezone?
Major cities in the KST timezone include Seoul, Busan, Incheon, Daegu, Daejeon, Pyongyang.
What is the UTC offset for KST?
Korea Standard Time (KST) is at UTC+09:00.
What should I know about the KST timezone?
South Korea does not observe daylight saving time. Seoul is home to Samsung, LG, and Hyundai headquarters.
When is it midnight in Oslo, what time is it in Seoul?
When it is 12:00 AM (midnight) in Oslo (CET), it is +7h later in Seoul (KST).
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