Time Difference

Rio de Janeiro vs Buenos Aires Time Difference

Compare the current local time in Rio de Janeiro, Brazil and Buenos Aires, Argentina.

Live local timeDST awareUTC offsets

From

Rio de Janeiro

Brazil

11:05 PM

Sun, Aug 16

UTC-3America/Sao_Paulo

Difference

Same time

Swap

Buenos Aires

Argentina

11:05 PM

Sun, Aug 16

UTC-3America/Argentina/Buenos_Aires

Current difference

Rio de Janeiro and Buenos Aires currently have the same local time.

This difference is calculated using the current UTC offsets for both locations and automatically reflects daylight-saving changes.

24-hour comparison

Compare Rio de Janeiro and Buenos Aires hour by hour

See how a full local day in Rio de Janeiro, Brazil maps to Buenos Aires, Argentina. TimeInOne automatically accounts for timezone offsets, date changes and daylight-saving transitions.

24-hour day

Best working-hours overlap

9:00 AM – 6:00 PM in Rio de Janeiro

corresponds to 9:00 AM – 6:00 PM in Buenos Aires.

9 hours overlap

Rio de Janeiro

America/Sao_Paulo

Buenos Aires

America/Argentina/Buenos_Aires

Availability

12:00 AM

Sun, Aug 16

12:00 AM

Sun, Aug 16

Night

1:00 AM

Sun, Aug 16

1:00 AM

Sun, Aug 16

Night

2:00 AM

Sun, Aug 16

2:00 AM

Sun, Aug 16

Night

3:00 AM

Sun, Aug 16

3:00 AM

Sun, Aug 16

Night

4:00 AM

Sun, Aug 16

4:00 AM

Sun, Aug 16

Night

5:00 AM

Sun, Aug 16

5:00 AM

Sun, Aug 16

Night

6:00 AM

Sun, Aug 16

6:00 AM

Sun, Aug 16

Night

7:00 AM

Sun, Aug 16

7:00 AM

Sun, Aug 16

Possible

8:00 AM

Sun, Aug 16

8:00 AM

Sun, Aug 16

Possible

9:00 AM

Sun, Aug 16

9:00 AM

Sun, Aug 16

Good overlap

10:00 AM

Sun, Aug 16

10:00 AM

Sun, Aug 16

Good overlap

11:00 AM

Sun, Aug 16

11:00 AM

Sun, Aug 16

Good overlap

12:00 PM

Sun, Aug 16

12:00 PM

Sun, Aug 16

Good overlap

1:00 PM

Sun, Aug 16

1:00 PM

Sun, Aug 16

Good overlap

2:00 PM

Sun, Aug 16

2:00 PM

Sun, Aug 16

Good overlap

3:00 PM

Sun, Aug 16

3:00 PM

Sun, Aug 16

Good overlap

4:00 PM

Sun, Aug 16

4:00 PM

Sun, Aug 16

Good overlap

5:00 PM

Sun, Aug 16

5:00 PM

Sun, Aug 16

Good overlap

6:00 PM

Sun, Aug 16

6:00 PM

Sun, Aug 16

Possible

7:00 PM

Sun, Aug 16

7:00 PM

Sun, Aug 16

Possible

8:00 PM

Sun, Aug 16

8:00 PM

Sun, Aug 16

Possible

9:00 PM

Sun, Aug 16

9:00 PM

Sun, Aug 16

Night

10:00 PM

Sun, Aug 16

10:00 PM

Sun, Aug 16

Night

11:00 PM

Sun, Aug 16

11:00 PM

Sun, Aug 16

Night

Working-hour labels use a general 9:00 AM–6:00 PM schedule. Individual schedules may differ.

On daylight-saving transition dates, a local day can contain 23 or 25 real hours instead of 24.

Call planning

Best time to call Buenos Aires from Rio de Janeiro

Compare typical business hours in Rio de Janeiro, Brazil and Buenos Aires, Argentina to find a practical time for calls, meetings or international coordination.

Rio de Janeiro

9:00 AM – 6:00 PM

Brazil

Best overlap

Buenos Aires

9:00 AM – 6:00 PM

Argentina

The best time to call Buenos Aires from Rio de Janeiro is between 9:00 AM and 6:00 PM in Rio de Janeiro. This corresponds to 9:00 AM – 6:00 PM in Buenos Aires.

Other reasonable windows

Rio de Janeiro

7:00 AM – 9:00 AM

Buenos Aires

7:00 AM – 9:00 AM

Rio de Janeiro

6:00 PM – 9:00 PM

Buenos Aires

6:00 PM – 9:00 PM

Recommendations use typical 9:00 AM–6:00 PM business hours and a broader 7:00 AM–9:00 PM acceptable calling window. Individual schedules may differ.

Time difference explained

Rio de Janeiro and Buenos Aires time difference explained

Current local-time relationship

Rio de Janeiro and Buenos Aires currently share the same local time.

Rio de Janeiro uses America/Sao_Paulo and currently has an offset of UTC-3. Buenos Aires uses America/Argentina/Buenos_Aires and currently has an offset of UTC-3.

Working-hours overlap

For a typical 9:00 AM–6:00 PM workday, the cities overlap from 9:00 AM to 6:00 PM in Rio de Janeiro, corresponding to 9:00 AM–6:00 PM in Buenos Aires.

Because UTC offsets can change during the year, always check the selected date when planning an important international call or meeting.

Convert a specific time

Need more than the current difference?

Convert a specific date and local time between Rio de Janeiro and Buenos Aires.

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Local clocks

Explore each city

Current time in Rio de Janeiro Current time in Buenos Aires

FAQ

Rio de Janeiro to Buenos Aires time difference FAQ

Common questions about the current time difference, UTC offsets, daylight-saving changes and practical calling hours between Rio de Janeiro and Buenos Aires.

What is the time difference between Rio de Janeiro and Buenos Aires?

Rio de Janeiro, Brazil and Buenos Aires, Argentina currently have the same local time.

Is Buenos Aires ahead of or behind Rio de Janeiro?

Rio de Janeiro and Buenos Aires currently have the same local time.

What time is it in Buenos Aires when it is 9:00 AM in Rio de Janeiro?

Using the current UTC offsets, 9:00 AM in Rio de Janeiro corresponds to 9:00 AM in Buenos Aires. The exact difference can change when daylight-saving rules change.

What is the best time to call Buenos Aires from Rio de Janeiro?

Typical 9:00 AM–6:00 PM business hours overlap between 9:00 AM and 6:00 PM in Rio de Janeiro. This corresponds to 9:00 AM–6:00 PM in Buenos Aires.

Can the time difference between Rio de Janeiro and Buenos Aires change?

Yes. The time difference can change if Rio de Janeiro or Buenos Aires changes its UTC offset because of daylight-saving or other local time-zone rules. TimeInOne uses the IANA zones America/Sao_Paulo and America/Argentina/Buenos_Aires for date-aware calculations.