When it is 09:00 in São Paulo it is 21:00 in Seoul in January and 21:00 in July. Seoul is 12 hours ahead São Paulo right now — and the difference is the same all year. This page gives the live times in both cities, the overlap between their working days, the daylight saving dates that move the difference, and the best meeting windows.
Try the tool: Time Zone Converter — convert any time between São Paulo and Seoul, with the offset for the date you pick.
Live times in São Paulo and Seoul
The two cities side by side. The January column uses the winter offsets (São Paulo UTC−03:00, Seoul UTC+09:00); the July column uses the summer offsets (São Paulo UTC−03:00, Seoul UTC+09:00).
| Time in São Paulo | Seoul in January | Seoul in July |
|---|---|---|
| 00:00 | 12:00 | 12:00 |
| 06:00 | 18:00 | 18:00 |
| 09:00 | 21:00 | 21:00 |
| 12:00 | 00:00 | 00:00 |
| 15:00 | 03:00 | 03:00 |
| 17:00 | 05:00 | 05:00 |
| 21:00 | 09:00 | 09:00 |
The world clock shows the current time in both cities live, and the individual city pages — time in São Paulo and time in Seoul — explain each city's time zone, offsets and daylight saving in full.
The time difference between São Paulo and Seoul
The difference is constant: Seoul is 12 hours ahead São Paulo on every day of the year. That is the simplest case in time-zone work — the answer does not depend on the date, and a meeting set for 09:00 in São Paulo is always 21:00 in Seoul. The reason the difference never changes is that neither city observes daylight saving.
To convert a time, add the difference: 09:00 in São Paulo is 21:00 in Seoul in January and 21:00 in July; 17:00 in São Paulo — the end of the working day — is 05:00 in Seoul in January and 05:00 in July. To go the other way, subtract it: 09:00 in Seoul is 21:00 in São Paulo in January. The time difference calculator does the arithmetic for any date, and the UTC to Seoul page gives the full conversion table for Seoul.
Meeting overlap between São Paulo and Seoul
The overlap is the hours when both cities are in their working day (09:00–17:00 local time). The table marks the overlapping hours in São Paulo's working day and shows what time they are in Seoul.
January
| São Paulo time | Seoul time | Both working? |
|---|---|---|
| 09:00 | 21:00 | Yes |
| 10:00 | 22:00 | Yes |
| 11:00 | 23:00 | Yes |
| 12:00 | 00:00 | Yes |
| 13:00 | 01:00 | Yes |
| 14:00 | 02:00 | Yes |
| 15:00 | 03:00 | Yes |
| 16:00 | 04:00 | Yes |
In January the overlap is 8 hours: 09:00, 10:00, 11:00, 12:00, 13:00, 14:00, 15:00, 16:00 São Paulo time. In July it is 8 hours: 09:00, 10:00, 11:00, 12:00, 13:00, 14:00, 15:00, 16:00 São Paulo time. The meeting planner finds the overlap for any two cities and any date, and the meeting time finder finds it for a whole team.
Daylight saving in São Paulo and Seoul
São Paulo does not observe daylight saving, so its offset of UTC−03:00 never changes.
Seoul does not observe daylight saving, so its offset of UTC+09:00 never changes.
The difference never changes, so there is no date on which a standing meeting moves. That does not mean the difference is the same as the difference with a third city — the difference between São Paulo and London, for example, may still move when London changes its clocks. The individual DST pages — São Paulo DST 2026 and Seoul DST 2026 — give the exact dates for each city.
Best meeting windows
The best windows in January are 09:00–17:00 in São Paulo (21:00–05:00 in Seoul). These are the hours inside both working days, so nobody is up early or late. It is a short window, so keep the meeting short and send an agenda in advance.
Calling and travel notes
When it is 09:00 in São Paulo it is 21:00 in Seoul in January; when it is 12:00 in São Paulo it is 00:00 in Seoul; when it is 17:00 in São Paulo it is 05:00 in Seoul. The difference is 12 hours or more, so the two cities are on different dates for part of the day: when it is Monday morning in São Paulo, it is still Sunday in Seoul if Seoul is behind, or already Monday evening if it is ahead. Always state the date as well as the time when you schedule across this pair. Scheduling between the Americas and Asia is the hardest case in time-zone work: the difference is 12 hours or more, so one side's working day is the other's night. The only workable approach is to meet at the edge of the day — early morning in São Paulo and evening in Seoul, or the reverse — and to keep the meeting short. Rotate the awkward hour week by week, or the same side will always be the one giving up its evening. Record the meeting and share notes, so the side that could not attend can still follow the decision.
Worked conversions
Six conversions, for January (offsets São Paulo UTC−03:00, Seoul UTC+09:00):
| São Paulo | Seoul |
|---|---|
| 08:00 | 20:00 |
| 09:00 | 21:00 |
| 12:00 | 00:00 |
| 14:00 | 02:00 |
| 17:00 | 05:00 |
| 20:00 | 08:00 |
In July, the answers are the same. For the reverse direction, see Seoul to São Paulo time.
São Paulo and Seoul at a glance
| Fact | São Paulo | Seoul |
|---|---|---|
| Country | Brazil | South Korea |
| Region | Americas | Asia |
| IANA time zone | America/Sao_Paulo |
Asia/Seoul |
| Standard offset | UTC−03:00 | UTC+09:00 |
| Daylight saving offset | — does not observe | — does not observe |
| Offset in January 2026 | UTC−03:00 | UTC+09:00 |
| Offset in July 2026 | UTC−03:00 | UTC+09:00 |
| Observes daylight saving | No | No |
The table is the whole pair in one place. The two numbers that matter most are the January and July offsets: if they are the same in both columns for a city, that city's offset never changes; if they differ, the city observes daylight saving and the difference between the cities moves with it. The individual city pages — time in São Paulo and time in Seoul — explain each city's time zone, and the DST pages — São Paulo DST 2026 and Seoul DST 2026 — give the exact change dates.
Frequently asked questions
What is the time difference between São Paulo and Seoul?
Seoul is 12 hours ahead São Paulo right now. In January the difference is 12 hours ahead and in July it is 12 hours ahead — it is the same all year.
How do I schedule a recurring meeting between São Paulo and Seoul?
Pick a time inside the overlap — 09:00–17:00 São Paulo time — and set the calendar event in UTC so it moves correctly when the clocks change. Re-check the overlap in March and October, when the difference moves, and rotate the time if the meeting falls outside someone's working day.
What time is it in Seoul when it is 09:00 in São Paulo?
It is 21:00 in January and 21:00 in July. The time zone converter gives the answer for any date.
What is the best time for a meeting between São Paulo and Seoul?
The best windows in January are 09:00–17:00 São Paulo time — inside both working days.
Does the time difference between São Paulo and Seoul change during the year?
No. The difference is 12 hours ahead all year, because neither city observes daylight saving.
What time is it in São Paulo when it is 09:00 in Seoul?
It is 21:00 in January and 21:00 in July. See Seoul to São Paulo time for the full comparison from Seoul's side.
What are the time zones of São Paulo and Seoul?
São Paulo is in America/Sao_Paulo (UTC−03:00 standard time) and Seoul is in Asia/Seoul (UTC+09:00 standard time).
What time is it in São Paulo when it is midnight in Seoul?
It is 12:00 in São Paulo in January and 12:00 in July — the same day, because São Paulo is ahead of Seoul. Midnight conversions are the ones that most often land on the wrong date, so always check the date as well as the time.
Sources
- IANA Time Zone Database, via Node.js Intl (
Intl.DateTimeFormatwithtimeZone) — offsets, daylight saving dates and local times in this article were worked out from the IANA database, not typed from memory. - TimeFlow's own time-zone data (
data/cities.ts,data/dst.ts), computed from the IANA database. - TimeFlow's time zone converter and meeting planner — the live tools behind the numbers on this page.
- Time-zone and daylight saving rules are set by governments and can change. For flights, deadlines and meetings that cannot move, confirm the time with an official source.