What is the time difference between Seoul and São Paulo?

São Paulo is 12 hours behind Seoul. That figure is current — it changes by an hour when either city starts or ends daylight saving, and the exact dates are listed above.

When is the best time to call São Paulo from Seoul?

There is no time inside normal working hours in both cities, so someone has to take the call outside them. The nearest workable windows are listed above — pick one and alternate who gets the awkward slot.

Does Seoul observe daylight saving time?

No. Seoul stays on UTC+9 all year, so its clocks never move.

Does São Paulo observe daylight saving time?

No. São Paulo stays on UTC-3 all year, so its clocks never move.

If it is midday in Seoul, what time is it in São Paulo?

It is 00:00 in São Paulo, on the same calendar date. That holds for the current offsets; it does not change through the year, because neither city moves its clocks.

Which time zones do Seoul and São Paulo use?

Seoul uses Asia/Seoul, currently UTC+9, and São Paulo uses America/Sao_Paulo, currently UTC-3. Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.

Convert Seoul time to São Paulo time

Right now São Paulo runs 12 hours behind Seoul. That gap is not fixed: it moves when either city changes its clocks.

Convert a time

From

Date

Time

Converted time

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The converter needs JavaScript to run. Everything below — offsets, daylight saving dates and the hour-by-hour table — is part of the page and works without it.

Hour by hour

The whole day mapped across: read down the left for Seoul, across for São Paulo.

Seoul	São Paulo
00:00	12:00previous day
01:00	13:00previous day
02:00	14:00previous day
03:00	15:00previous day
04:00	16:00previous day
05:00	17:00previous day
06:00	18:00previous day
07:00	19:00previous day
08:00	20:00previous day
09:00	21:00previous day
10:00	22:00previous day
11:00	23:00previous day
12:00	00:00
13:00	01:00
14:00	02:00
15:00	03:00
16:00	04:00
17:00	05:00
18:00	06:00
19:00	07:00
20:00	08:00
21:00	09:00
22:00	10:00
23:00	11:00

Daylight saving time

Neither Seoul nor São Paulo changes its clocks, so the difference between them is the same every day of the year.

Seoul

Does not observe daylight saving time

Standard: UTC+9

São Paulo

Does not observe daylight saving time

Standard: UTC-3

When you can actually talk

A standard working day in Seoul and one in São Paulo do not overlap at all. Any call between them is early for one side or late for the other.

Seoul 09:00–18:00São Paulo 21:00–06:00
Seoul 21:00–06:00São Paulo 09:00–18:00

Reference

The zone identifiers and offsets behind everything above.

	Seoul	São Paulo
IANA zone	Asia/Seoul	America/Sao_Paulo
Abbreviation	UTC+9	UTC-3
Standard offset	UTC+9	UTC-3
Daylight offset	—	—
Clock changes this year	0	0
Country	South Korea	Brazil

Example, not the current time. Live times appear once the page loads.

Common questions

What is the time difference between Seoul and São Paulo?: São Paulo is 12 hours behind Seoul. That figure is current — it changes by an hour when either city starts or ends daylight saving, and the exact dates are listed above.
When is the best time to call São Paulo from Seoul?: There is no time inside normal working hours in both cities, so someone has to take the call outside them. The nearest workable windows are listed above — pick one and alternate who gets the awkward slot.
Does Seoul observe daylight saving time?: No. Seoul stays on UTC+9 all year, so its clocks never move.
Does São Paulo observe daylight saving time?: No. São Paulo stays on UTC-3 all year, so its clocks never move.
If it is midday in Seoul, what time is it in São Paulo?: It is 00:00 in São Paulo, on the same calendar date. That holds for the current offsets; it does not change through the year, because neither city moves its clocks.
Which time zones do Seoul and São Paulo use?: Seoul uses Asia/Seoul, currently UTC+9, and São Paulo uses America/Sao_Paulo, currently UTC-3. Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.