Time Difference

Kolkata vs Rio de Janeiro Time Difference

Compare the current local time in Kolkata, India and Rio de Janeiro, Brazil.

Live local timeDST awareUTC offsets

From

Kolkata

India

5:15 AM

Mon, Aug 17

UTC+5:30Asia/Kolkata

Difference

8h 30m

Swap

Rio de Janeiro

Brazil

8:45 PM

Sun, Aug 16

UTC-3America/Sao_Paulo

Current difference

Rio de Janeiro is currently 8 hours 30 minutes behind Kolkata.

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

24-hour comparison

Compare Kolkata and Rio de Janeiro hour by hour

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

24-hour day

Working-hours overlap

There is no direct overlap between typical 9:00 AM–6:00 PM working hours in Kolkata and Rio de Janeiro on this date.

Kolkata

Asia/Kolkata

Rio de Janeiro

America/Sao_Paulo

Availability

12:00 AM

Mon, Aug 17

3:30 PM

Previous day

Sun, Aug 16

Night

1:00 AM

Mon, Aug 17

4:30 PM

Previous day

Sun, Aug 16

Night

2:00 AM

Mon, Aug 17

5:30 PM

Previous day

Sun, Aug 16

Night

3:00 AM

Mon, Aug 17

6:30 PM

Previous day

Sun, Aug 16

Night

4:00 AM

Mon, Aug 17

7:30 PM

Previous day

Sun, Aug 16

Night

5:00 AM

Mon, Aug 17

8:30 PM

Previous day

Sun, Aug 16

Night

6:00 AM

Mon, Aug 17

9:30 PM

Previous day

Sun, Aug 16

Night

7:00 AM

Mon, Aug 17

10:30 PM

Previous day

Sun, Aug 16

Night

8:00 AM

Mon, Aug 17

11:30 PM

Previous day

Sun, Aug 16

Night

9:00 AM

Mon, Aug 17

12:30 AM

Mon, Aug 17

Night

10:00 AM

Mon, Aug 17

1:30 AM

Mon, Aug 17

Night

11:00 AM

Mon, Aug 17

2:30 AM

Mon, Aug 17

Night

12:00 PM

Mon, Aug 17

3:30 AM

Mon, Aug 17

Night

1:00 PM

Mon, Aug 17

4:30 AM

Mon, Aug 17

Night

2:00 PM

Mon, Aug 17

5:30 AM

Mon, Aug 17

Night

3:00 PM

Mon, Aug 17

6:30 AM

Mon, Aug 17

Night

4:00 PM

Mon, Aug 17

7:30 AM

Mon, Aug 17

Possible

5:00 PM

Mon, Aug 17

8:30 AM

Mon, Aug 17

Possible

6:00 PM

Mon, Aug 17

9:30 AM

Mon, Aug 17

Possible

7:00 PM

Mon, Aug 17

10:30 AM

Mon, Aug 17

Possible

8:00 PM

Mon, Aug 17

11:30 AM

Mon, Aug 17

Possible

9:00 PM

Mon, Aug 17

12:30 PM

Mon, Aug 17

Night

10:00 PM

Mon, Aug 17

1:30 PM

Mon, Aug 17

Night

11:00 PM

Mon, Aug 17

2:30 PM

Mon, Aug 17

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 Rio de Janeiro from Kolkata

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

No direct business-hours overlap

Flexible scheduling is recommended

Typical 9:00 AM–6:00 PM working hours do not overlap directly between Kolkataand Rio de Janeiro. Consider an early-morning or evening call instead.

Other reasonable windows

Kolkata

4:00 PM – 9:00 PM

Rio de Janeiro

7:30 AM – 12:30 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

Kolkata and Rio de Janeiro time difference explained

Current local-time relationship

Rio de Janeiro is currently 8 hours and 30 minutes behind Kolkata.

Kolkata uses Asia/Kolkata and currently has an offset of UTC+5:30. Rio de Janeiro uses America/Sao_Paulo 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 5:30 PM to 6:00 PM in Kolkata, corresponding to 9:00 AM–9:30 AM in Rio de Janeiro.

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 Kolkata and Rio de Janeiro.

Open time converter

Local clocks

Explore each city

Current time in Kolkata Current time in Rio de Janeiro

FAQ

Kolkata to Rio de Janeiro time difference FAQ

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

What is the time difference between Kolkata and Rio de Janeiro?

The current time difference between Kolkata and Rio de Janeiro is 8h 30m. Rio de Janeiro is currently 8 hours and 30 minutes behind Kolkata.

Is Rio de Janeiro ahead of or behind Kolkata?

Rio de Janeiro is currently 8 hours and 30 minutes behind Kolkata.

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

Using the current UTC offsets, 9:00 AM in Kolkata corresponds to 12:30 AM in Rio de Janeiro. The exact difference can change when daylight-saving rules change.

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

Typical 9:00 AM–6:00 PM business hours overlap between 5:30 PM and 6:00 PM in Kolkata. This corresponds to 9:00 AM–9:30 AM in Rio de Janeiro.

Can the time difference between Kolkata and Rio de Janeiro change?

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