The short answer
10pm in Seoul is 10am in Brasília.
Seoul is 12 hours ahead of Brasília. It falls outside the 9-to-5 in Seoul but lands inside working hours in Brasília.
Seoul☾
10pm
Brasília☀
10am
Right now
6:40pmKST · UTC+09:00 · Mon, Jun 22
6:40am-03:00 · UTC-03:00 · Mon, Jun 22
Read across to convert
Seoul
KST · UTC+09:00
Brasília
-03:00 · UTC-03:00
Pinned10pmSeoul=10amBrasília
12amMon
12pmSun ·−1d
WORK1am
1pmSun ·−1d
WORK2am
2pmSun ·−1d
WORK3am
3pmSun ·−1d
WORK4am
4pmSun ·−1d
WORK5am
5pmSun ·−1d
6am
6pmSun ·−1d
7am
7pmSun ·−1d
8am
8pmSun ·−1d
9am
WORK9pmSun ·−1d
10am
WORK10pmSun ·−1d
11am
WORK11pmSun ·−1d
12pm
WORK12amMon
1pm
WORK1am
2pm
WORK2am
3pm
WORK3am
4pm
WORK4am
5pm
5am
NOW
6pm
6am
7pm
7am
8pm
8am
9pm
9am
WORKPINNED
10pm
10am
WORK11pm
11am
WORKdaylightnightworking hoursoverlap
Best time to meet
No shared working hours.
Seoul and Brasília are too far apart for a working-day overlap. The least-unsociable option is an early-morning call on one side and an evening one on the other — or hand work off asynchronously and let the planet do the waiting.
Popular conversions
Quick reference.
9amSeoul=9pmBrasília · prev day
12pmSeoul=12amBrasília
3pmSeoul=3amBrasília
5pmSeoul=5amBrasília
9pmSeoul=9amBrasília
In context
What each side covers.
Brasília
6:40am-03:00 · UTC-03:00
Cities on this clock
Related converters
Other popular pairs.
Pacific Time
2:40am
India Standard Time
3:10pm
Pacific Time to India12 hours 30 minutes behind
Eastern Standard Time
5:40am
Central European Time
11:40am
Eastern Time to Central Europe6 hours behind
India Standard Time
3:10pm
Eastern Standard Time
5:40am
India to Eastern Time9 hours 30 minutes ahead
Greenwich Mean Time
10:40am
India Standard Time
3:10pm
London to India4 hours 30 minutes behind
Pacific Standard Time
2:40am
Eastern Standard Time
5:40am
Pacific to Eastern Time3 hours behind
Central European Time
11:40am
India Standard Time
3:10pm
Central Europe to India3 hours 30 minutes behind
Frequently asked
Quick answers about converting between Seoul and Brasília. Can't find what you need? Email [email protected].
- What is the time difference between Seoul and Brasília?
- Seoul is 12 hours ahead of Brasília right now. We always show the live, daylight-saving-correct difference, so this figure already accounts for whichever side is observing summer time today.
- When it's 10pm in Seoul, what time is it in Brasília?
- 10pm in Seoul is 10am in Brasília. It falls outside the 9-to-5 in Seoul but lands inside working hours in Brasília. Use the hour-by-hour table above to read any other time across.
- What's the best time for a call between Seoul and Brasília?
- There's no comfortable 9-to-5 overlap between Seoul and Brasília — they sit on opposite sides of the planet's working day. Plan for an early or late call on one side, or hand work off asynchronously.
- Does this account for daylight saving time?
- Yes. We track every clock change in both places, so the abbreviations you see — KST and -03:00 — are the ones actually in effect right now, not a fixed all-year value. When either side changes its clocks, this page updates automatically.
- Why is the date sometimes different on each side?
- When two places are far enough apart, the same moment can fall on different calendar days. That is why some conversions are marked "previous day" or "next day" — it is the same instant in time, read off two clocks that crossed midnight at different points.