Seoul to São Paulo
-12hSeoul
KSTSOURCESão Paulo
BRTGreen rows indicate typical business hours (9 AM - 5 PM)
KST and BRT on the World Map
The map below highlights the KST (Korea Standard Time) and BRT (Brasilia 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).
BRT – Brasilia Time
UTC-03:00Brasilia Time (BRT) is the time zone for eastern Brazil, 3 hours behind UTC.
- •Brazil abolished daylight saving time in 2019.
- •São Paulo is the largest city in the Southern Hemisphere.
- •BRT is 2 hours ahead of EST.
- •Brazil spans four different time zones.
- •The B3 stock exchange in São Paulo operates on BRT.
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 São Paulo
WikipediaSão Paulo operates on Brasília Time (BRT), UTC-3. As South America's largest financial center, São Paulo's B3 exchange is the Americas' second-largest.
The city has more helicopters than any other city in the world due to traffic congestion.
Comparing Time Zones: Seoul and São Paulo
Seoul runs on Korean Standard Time (KST) at UTC+09:00. São Paulo runs on Brasilia Standard Time (BRT) at UTC-03:00. That puts Seoul 12 hours behind São Paulo — a difference of -12h at the current offsets.
In practice, when it is 9:00 AM in Seoul it is 9:00 PM in São Paulo on the previous day. Midnight in Seoul is 12:00 PM in São Paulo. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Seoul to São Paulo time conversion table
| Seoul (KST) | São Paulo (BRT) | Day |
|---|---|---|
| 12:00 AM | 12:00 PM | previous day |
| 6:00 AM | 6:00 PM | previous day |
| 7:00 AM | 7:00 PM | previous day |
| 8:00 AM | 8:00 PM | previous day |
| 9:00 AM | 9:00 PM | previous day |
| 12:00 PM | 12:00 AM | same day |
| 3:00 PM | 3:00 AM | same day |
| 5:00 PM | 5:00 AM | same day |
| 6:00 PM | 6:00 AM | same day |
| 9:00 PM | 9:00 AM | same day |
Why people convert Seoul to São Paulo time
- Scheduling a call from Seoul to São Paulo: a 10:00 AM start in Seoul lands at 10:00 PM in São Paulo the previous day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -12h gap: Seoul and São Paulo have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in São Paulo is 9:00 PM in Seoul.
- Coordinating a Seoul-based team with São Paulo 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 KST" is unambiguous; "3 PM" across a -12h gap is not.
- With a -12h gap there is no shared 9-to-5 window, so alternate the early start: one week Seoul takes the early slot, the next week São Paulo does.
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 BRT (Brasilia Time)
Brasilia Time (BRT) is the standard time in the most populous regions of Brazil, including São Paulo, Rio de Janeiro, and the capital Brasília. Brazil abolished daylight saving time in 2019, so BRT is now observed year-round in these regions. Brazil spans four time zones in total.
Best time to call between Seoul and São Paulo
With a -12h offset there is no overlap inside a normal 9 AM – 5 PM day. São Paulo opens at 9:00 AM BRT, which is 9:00 PM in Seoul, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
Seoul and São Paulo have no shared working hours because of the -12h gap. Teams need to alternate early starts or rely on asynchronous handovers.
Seoul is 12 hours behind São Paulo (KST UTC+09:00 → BRT UTC-03:00). There is no shared 9-to-5 window, so plan around an early or late slot. 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 São Paulo?
Seoul (KST, UTC+09:00) is 12 hours behind São Paulo (BRT, UTC-03:00). The gap is currently -12h.
How do I convert Seoul time to São Paulo time?
Add -12h to Seoul local time. For example, 9:00 AM in Seoul is 9:00 PM in São Paulo (previous day).
What time is it in São Paulo right now?
São Paulo uses BRT at UTC-03:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -12h offset from Seoul.
What is the best time to call São Paulo from Seoul?
There is no shared working-hours window because of the -12h gap. The closest option is 1:00 PM in Seoul, which is 1:00 AM in São Paulo.
Which is behind, Seoul or São Paulo?
Seoul is 12 hours behind São Paulo. When it is 12:00 PM in Seoul it is 12:00 AM in São Paulo.
Do Seoul and São Paulo use different time zones?
Seoul (South Korea) uses KST at UTC+09:00, while São Paulo (Brazil) uses BRT at UTC-03:00. The IANA identifiers are Asia/Seoul and America/Sao_Paulo.
Does daylight saving time affect the Seoul–São Paulo difference?
Neither zone observes daylight saving time, so the -12h offset between Seoul and São Paulo 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 São Paulo?
Sometimes. The -12h gap is large enough that 8:00 PM or later in Seoul already falls on the in São Paulo.
What is the time difference between Seoul and São Paulo?
São Paulo is -12h 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 São Paulo in?
São Paulo operates on Brasília Time (BRT), UTC-3. As South America's largest financial center, São Paulo's B3 exchange is the Americas' second-largest.
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 São Paulo?
Standard business hours in São Paulo are 9:00 AM - 6:00 PM BRT.
What is the best time to schedule a call between Seoul and São Paulo?
The best overlap for a call is when both cities are in business hours. Seoul works 9:00 AM - 6:00 PM KST and São Paulo works 9:00 AM - 6:00 PM BRT (-12h difference). Try scheduling during the overlapping window for maximum convenience.
What currencies are used in Seoul and São Paulo?
Seoul uses KRW (₩) while São Paulo uses BRL (R$). Check current exchange rates when planning travel or business between these cities.
How do Seoul and São Paulo compare in size?
Seoul has a population of approximately 9.7 million (metro: 25.5 million), while São Paulo has approximately 12.4 million (metro: 22.4 million).
What are the major landmarks in Seoul and São Paulo?
Seoul is known for Gyeongbokgung Palace, N Seoul Tower, Bukchon Hanok Village. São Paulo is famous for Paulista Avenue, Ibirapuera Park, São Paulo Cathedral.
Do Seoul and São Paulo have stock exchanges?
Yes. Seoul has the KRX (Korea Exchange) and São Paulo has the B3 (Brasil Bolsa Balcão). The -12h 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 BRT timezone?
Major cities in the BRT timezone include São Paulo, Rio de Janeiro, Brasília, Belo Horizonte, Salvador, Fortaleza, Recife, Curitiba.
What is the UTC offset for BRT?
Brasilia Time (BRT) is at UTC-03:00.
What should I know about the BRT timezone?
Brazil abolished daylight saving time in 2019. São Paulo is the largest city in the Southern Hemisphere.
When is it midnight in Seoul, what time is it in São Paulo?
When it is 12:00 AM (midnight) in Seoul (KST), it is -12h later in São Paulo (BRT).
Related Developer Tools
Explore more tools that work great with timezone conversions for international teams:
Related Timezone Conversions
More Seoul time conversions
- seoul to kst
- seoul to south korea
- seoul to dubai
- seoul to mumbai
- seoul to delhi
- seoul to bangalore
- seoul to kathmandu
- seoul to bangkok
- seoul to singapore
- seoul to hong kong
- seoul to shanghai
- seoul to beijing
- seoul to tokyo
- seoul to osaka
- seoul to new york
- seoul to london
- seoul to sydney
- seoul to los angeles
- seoul to paris
- seoul to berlin
- seoul to toronto
- new york to seoul
- london to seoul
- dubai to seoul
- tokyo to seoul
- singapore to seoul
- sydney to seoul
- los angeles to seoul
- paris to seoul
- delhi to seoul
- mumbai to seoul
- berlin to seoul
- hong kong to seoul
- toronto to seoul
- kathmandu to seoul
See every conversion from Seoul →·See every conversion from São Paulo →