BRT to KST Converter
Convert time between Brasilia Time (BRT) and Korea Standard Time (KST)
Brasilia Time (BRT)
Korea Standard Time (KST)
Time Difference
Korea Standard Time (KST) is 0 hours ahead of Brasilia Time (BRT)
Select Date
Select Time
Quick Reference
| BRT | KST |
|---|---|
| 23:00 | 11:00 |
| 01:00 | 13:00 |
| 03:00 | 15:00 |
| 05:00 | 17:00 |
| 07:00 | 19:00 |
| 09:00 | 21:00 |
| 11:00 | 23:00 |
| 13:00 | 01:00 |
| 15:00 | 03:00 |
| 17:00 | 05:00 |
| 19:00 | 07:00 |
| 21:00 | 09:00 |
Top 10 Most Common Time Zones
| Abbreviation | Full Name | UTC Offset | Typical Use |
|---|---|---|---|
| UTC | Coordinated Universal Time | UTC ±0 | Global reference standard (servers, logs, APIs) |
| EST / EDT | Eastern (US) Time | UTC −5 / −4 | New York, Toronto — North American business hub |
| CST / CDT | Central (US) Time | UTC −6 / −5 | Chicago, Dallas — US central business region |
| PST / PDT | Pacific (US) Time | UTC −8 / −7 | San Francisco, Los Angeles — tech industry standard |
| GMT / BST | Greenwich Mean / British Summer Time | UTC 0 / +1 | UK, used globally as a reference with UTC |
| CET / CEST | Central European (Summer) Time | UTC +1 / +2 | Paris, Berlin, Amsterdam — EU business core |
| IST | India Standard Time | UTC +5:30 | India — major IT & outsourcing region |
| CST | China Standard Time | UTC +8 | Beijing, Shanghai — East Asia business hub |
| JST | Japan Standard Time | UTC +9 | Tokyo — finance & tech hub |
| AEST / AEDT | Australian Eastern (Daylight) Time | UTC +10 / +11 | Sydney, Melbourne — APAC regional business |
Why Time Zone Abbreviations Are Ambiguous
Unlike standardized identifiers (like America/New_York or Europe/London from the IANA tz database), abbreviations such as "CST" or "IST" are not globally unique. They can refer to different time zones depending on context — country, region, or even time of year (due to daylight saving time).
Common Ambiguous Time Zone Abbreviations
| Abbrev. | Common Meaning(s) | UTC Offset | Region(s) |
|---|---|---|---|
| CST | Central Standard Time / China Standard Time / Cuba Standard Time | UTC−6 / UTC+8 / UTC−5 | North America, China, Cuba |
| IST | Indian Standard Time / Irish Standard Time / Israel Standard Time | UTC+5:30 / UTC+1 / UTC+2 | India, Ireland, Israel |
| AST | Atlantic Standard Time / Arabia Standard Time | UTC−4 / UTC+3 | Caribbean, Canada, Middle East |
| PST | Pacific Standard Time / Philippine Standard Time | UTC−8 / UTC+8 | North America, Philippines |
| EST | Eastern Standard Time (North America / Australia) | UTC−5 / UTC+10 | North America, Australia |
✅ Best Practice
To avoid ambiguity, always:
- Use IANA tz identifiers — e.g.,
America/New_Yorkinstead of "EST" - Specify UTC offset explicitly — e.g.,
UTC−5when abbreviations must be used - Include the full timezone name — e.g., "Eastern Standard Time (EST)" with UTC offset
About BRT to KST Time Conversion
Converting between Brasilia Time (BRT) and Korea Standard Time (KST) connects Brazil with South Korea. BRT is UTC-3 and KST is UTC+9, putting Seoul, Busan and Incheon 12 hours ahead of Sao Paulo, Rio de Janeiro and Brasilia. The two regions sit roughly opposite each other on the clock — daytime in one is night in the other.
This converter uses the IANA timezone database for accurate calculations. Neither South Korea nor Brazil observes daylight saving time, so the 12-hour gap between BRT and KST is constant year-round.
Common Use Cases for BRT to KST Conversion
Business & Work
- Coordinating electronics and semiconductor calls between Brazilian and South Korean firms
- Scheduling automotive industry handovers between Sao Paulo and Seoul
- Aligning shipping and trade meetings between Brazilian and Korean ports
Personal & Travel
- Planning travel between Brazil and South Korea
- Coordinating with family or friends in Seoul, Busan or Incheon
- Scheduling video calls or watching live K-pop and Korean sports events
Time Zone Information
Brasilia Time (BRT)
- UTC Offset: UTC-3
- IANA Timezone: America/Sao_Paulo
- Daylight Saving: Not observed (DST abolished in Brazil in 2019)
- Major Cities: Brasilia, Sao Paulo, Rio de Janeiro, Belo Horizonte, Salvador
- Coverage: Most of Brazil including the southeast, south, northeast and central-west regions
Korea Standard Time (KST)
- UTC Offset: UTC+9
- IANA Timezone: Asia/Seoul
- Daylight Saving: Not observed
- Major Cities: Seoul, Busan, Incheon, Daegu, Daejeon, Gwangju
- Coverage: Republic of Korea (South Korea) year-round
Quick Reference: BRT to KST
Remember: KST is exactly 12 hours ahead of BRT — flip AM/PM and add a day
Frequently Asked Questions
What is the time difference between BRT and KST?
Brasilia Time (BRT) is UTC-3, and Korea Standard Time (KST) is UTC+9. KST is 12 hours ahead of BRT. When it is 12:00 PM in Brasilia, it is 12:00 AM the next day in Seoul.
Does the BRT-KST offset change throughout the year?
No. South Korea does not observe DST and Brazil ended DST in 2019, so the 12-hour gap between BRT and KST is constant year-round.
Does Brazil observe daylight saving time?
No. Brazil abolished DST in 2019, so BRT remains at UTC-3 throughout the year.
What are the best times for BRT-KST business calls?
Overlap is tight. 7:00 to 9:00 PM BRT corresponds to 7:00 to 9:00 AM KST — late evening in Brazil, fresh start in Korea. Early morning in Brazil (6:00 to 8:00 AM BRT) is end-of-day in Korea (6:00 to 8:00 PM KST).
Which countries/regions use KST timezone?
KST covers the Republic of Korea (South Korea). Major cities include Seoul, Busan, Incheon, Daegu, Daejeon and Gwangju. Japan uses JST at the same UTC+9 offset.
Which countries/regions use BRT timezone?
BRT is observed across most of Brazil, including Brasilia, Sao Paulo, Rio de Janeiro, Belo Horizonte and Salvador. Some western states use AMT (UTC-4) instead.
Pro Tips
- • KST is exactly 12 hours ahead of BRT — flip AM/PM and add one day to a Brasilia time to get the Seoul time.
- • Best meeting window: 7:00 to 9:00 PM BRT = 7:00 to 9:00 AM KST — late evening in Brazil, morning in Korea.
- • Alternative window: 6:00 to 8:00 AM BRT = 6:00 to 8:00 PM KST — early morning in Brazil, end of day in Korea.
- • Neither side observes DST, so the 12-hour gap is stable year-round.
- • KST shares the same UTC+9 offset as JST (Japan); a meeting time works for both Korea and Japan simultaneously.
- • Use IANA identifiers (America/Sao_Paulo and Asia/Seoul) in calendars to keep meetings unambiguous.