Chicago to Rio das Ostras time converter

Rio das Ostras is 2 hours ahead of Chicago. When it is 9:00 AM in Chicago, it is 11:00 AM in Rio das Ostras.

Chicago CDT

Monday, October 19, 2026

Rio das Ostras BRT

Monday, October 19, 2026

Chicago
Illinois, United States
Mon, Oct 19
CDTUTC-5
Rio das Ostras
Rio de Janeiro, Brazil
Mon, Oct 19
BRTUTC-3+2h
Finding your time zone…
Shared working hours (9:00–18:00)

Chicago to Rio das Ostras conversion table

Every hour of today in Chicago and the matching time in Rio das Ostras. Light rows are typical working hours (9:00–18:00).

ChicagoRio das Ostras
12:00 AM2:00 AM
1:00 AM3:00 AM
2:00 AM4:00 AM
3:00 AM5:00 AM
4:00 AM6:00 AM
5:00 AM7:00 AM
6:00 AM8:00 AM
7:00 AM9:00 AM
8:00 AM10:00 AM
9:00 AM11:00 AM
10:00 AM12:00 PM
11:00 AM1:00 PM
12:00 PM2:00 PM
1:00 PM3:00 PM
2:00 PM4:00 PM
3:00 PM5:00 PM
4:00 PM6:00 PM
5:00 PM7:00 PM
6:00 PM8:00 PM
7:00 PM9:00 PM
8:00 PM10:00 PM
9:00 PM11:00 PM
10:00 PM12:00 AM+1 day
11:00 PM1:00 AM+1 day

Best time to call or meet

Both sides are at work from 9:00 AM – 4:00 PM in Chicago (11:00 AM – 6:00 PM in Rio das Ostras).

Daylight saving time and the difference

The difference changes during the year because Chicago and Rio das Ostras switch clocks on different dates:

  • Oct 19, 2026 – Nov 1, 2026: +2h
  • Nov 1, 2026 – Mar 14, 2027: +3h
  • Mar 14, 2027 – Oct 19, 2027: +2h

Distance

Chicago and Rio das Ostras are 8,562 km (5,320 miles) apart in a straight line.

More conversions

Rio das Ostras to ChicagoChicago to New YorkChicago to LondonChicago to Los AngelesChicago to TorontoChicago to São PauloChicago to ParisChicago to BerlinChicago to MoscowChicago to DubaiChicago to New DelhiChicago to BangkokChicago to Singapore
New York to Rio das OstrasLondon to Rio das OstrasLos Angeles to Rio das OstrasToronto to Rio das OstrasSão Paulo to Rio das OstrasParis to Rio das OstrasBerlin to Rio das OstrasMoscow to Rio das OstrasDubai to Rio das OstrasNew Delhi to Rio das OstrasBangkok to Rio das OstrasSingapore to Rio das Ostras

Questions and answers

What is the time difference between Chicago and Rio das Ostras?

Rio das Ostras is 2 hours ahead of Chicago.

What time is it in Rio das Ostras when it is 9 AM in Chicago?

When it is 9:00 AM in Chicago, it is 11:00 AM in Rio das Ostras.

When is the best time to call Rio das Ostras from Chicago?

Both sides are at work from 9:00 AM – 4:00 PM in Chicago (11:00 AM – 6:00 PM in Rio das Ostras).

Does the time difference between Chicago and Rio das Ostras change?

Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.