Offset
The time difference between Seoul and Rio de Janeiro is 12 hours.
Seoul (KST) is ahead of Rio de Janeiro (BRT).
KST: UTC+9
BRT: UTC-3
Neither Seoul nor Rio de Janeiro is currently observing daylight saving time.
When to schedule
Standard business hours (9 AM–5 PM, Mon–Fri) in Seoul and Rio de Janeiro don't overlap on the same weekday. Rio de Janeiro is 12 hours behind Seoul.
With some flexibility, there’s a workable window outside standard hours:
- 7 PM–8 PM in Seoul (7 AM–8 AM in Rio de Janeiro) — suggest 7:00 PM Seoul (7:00 AM Rio de Janeiro).
This means an early start or late finish for one side, but it’s a reasonable slot for a one-off meeting.
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
South Korea
- New Year's DayThu, Jan 1
- Lunar New YearMon, Feb 16
- Lunar New YearTue, Feb 17
- Lunar New YearWed, Feb 18
- Independence Movement DayMon, Mar 2
- Labour DayFri, May 1
- Children's DayTue, May 5
- Buddha's BirthdayMon, May 25
- Local Election DayWed, Jun 3
- Memorial DaySat, Jun 6
- Constitution DayFri, Jul 17
- Liberation DayMon, Aug 17
- ChuseokThu, Sep 24
- ChuseokFri, Sep 25
- ChuseokSat, Sep 26
- National Foundation DayMon, Oct 5
- Hangul DayFri, Oct 9
- Christmas DayFri, Dec 25
Brazil
- New Year's DayThu, Jan 1
- CarnivalMon, Feb 16
- CarnivalTue, Feb 17
- Good FridayFri, Apr 3
- Easter SundaySun, Apr 5
- TiradentesTue, Apr 21
- Labour DayFri, May 1
- Corpus ChristiThu, Jun 4
- Independence DayMon, Sep 7
- Our Lady of AparecidaMon, Oct 12
- All Souls' DayMon, Nov 2
- Republic Proclamation DaySun, Nov 15
- Black Awareness DayFri, Nov 20
- Christmas DayFri, Dec 25
About these zones
Seoul uses Korea Standard Time (KST). To call South Korea, dial +82.
Rio de Janeiro uses Brasilia Time (BRT). To call Brazil, dial +55.
Rio de Janeiro is approximately 11,250 miles northwest of Seoul.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Seoul | Rio de Janeiro | Day |
|---|---|---|
| 12:00 am | 12:00 pm | -1 day |
| 1:00 am | 1:00 pm | -1 day |
| 2:00 am | 2:00 pm | -1 day |
| 3:00 am | 3:00 pm | -1 day |
| 4:00 am | 4:00 pm | -1 day |
| 5:00 am | 5:00 pm | -1 day |
| 6:00 am | 6:00 pm | -1 day |
| 7:00 am | 7:00 pm | -1 day |
| 8:00 am | 8:00 pm | -1 day |
| 9:00 am | 9:00 pm | -1 day |
| 10:00 am | 10:00 pm | -1 day |
| 11:00 am | 11:00 pm | -1 day |
| 12:00 pm | 12:00 am | Same day |
| 1:00 pm | 1:00 am | Same day |
| 2:00 pm | 2:00 am | Same day |
| 3:00 pm | 3:00 am | Same day |
| 4:00 pm | 4:00 am | Same day |
| 5:00 pm | 5:00 am | Same day |
| 6:00 pm | 6:00 am | Same day |
| 7:00 pm | 7:00 am | Same day |
| 8:00 pm | 8:00 am | Same day |
| 9:00 pm | 9:00 am | Same day |
| 10:00 pm | 10:00 am | Same day |
| 11:00 pm | 11:00 am | Same day |
Daylight saving time
Neither Seoul nor Rio de Janeiro observes daylight saving time. The offset between these zones remains constant year-round.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 5:12 AM
- Sunset
- 7:51 PM
- Day length
- 14h 38m
- Sunrise
- 6:29 AM
- Sunset
- 5:16 PM
- Day length
- 10h 47m
Daylight overlap: 1h 22m — 6:29 PM–7:51 PM in Seoul (6:29 AM–7:51 AM in Rio de Janeiro). Both locations are in daylight during this window.
Cities in these zones
Other cities in Brasilia Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Korea Standard Time
- GMP
- ICN
- PUS
- TAE
- CJJ
- KWJ
- MWX
Airports in Brasilia Time
- CGH
- GRU
- GIG
- SDU
- CNF
- BSB
- CWB
- GYN
- POA
Related conversions
Common conversions
- What is 9:00 am Seoul in Rio de Janeiro?
- 9:00 am Seoul is 9:00 pm Rio de Janeiro, the previous day.
- What is 12:00 pm Seoul in Rio de Janeiro?
- 12:00 pm Seoul is 12:00 am Rio de Janeiro.
- What is 12:30 pm Seoul in Rio de Janeiro?
- 12:30 pm Seoul is 12:30 am Rio de Janeiro.
- What is 2:00 pm Seoul in Rio de Janeiro?
- 2:00 pm Seoul is 2:00 am Rio de Janeiro.
- What is 5:00 pm Seoul in Rio de Janeiro?
- 5:00 pm Seoul is 5:00 am Rio de Janeiro.
- What is 11:30 pm Seoul in Rio de Janeiro?
- 11:30 pm Seoul is 11:30 am Rio de Janeiro.