Mason City to Rio de Janeiro time converter

Rio de Janeiro is 2 hours ahead of Mason City. When it is 9:00 AM in Mason City, it is 11:00 AM in Rio de Janeiro.

Mason City CDT

Wednesday, October 21, 2026

Rio de Janeiro BRT

Wednesday, October 21, 2026

Mason City
Iowa, United States
Wed, Oct 21
CDTUTC-5
Rio de Janeiro
Brazil
Wed, Oct 21
BRTUTC-3+2h
Finding your time zone…
Shared working hours (9:00–18:00)

Mason City to Rio de Janeiro conversion table

Every hour of today in Mason City and the matching time in Rio de Janeiro. Light rows are typical working hours (9:00–18:00).

Mason CityRio de Janeiro
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 Mason City (11:00 AM – 6:00 PM in Rio de Janeiro).

Daylight saving time and the difference

The difference changes during the year because Mason City and Rio de Janeiro switch clocks on different dates:

  • Oct 21, 2026 – Nov 1, 2026: +2h
  • Nov 1, 2026 – Mar 14, 2027: +3h
  • Mar 14, 2027 – Oct 21, 2027: +2h

Distance

Mason City and Rio de Janeiro are 8,948 km (5,560 miles) apart in a straight line.

More conversions

Rio de Janeiro to Mason CityMason City to New YorkMason City to LondonMason City to Los AngelesMason City to ChicagoMason City to TorontoMason City to São PauloMason City to ParisMason City to BerlinMason City to MoscowMason City to DubaiMason City to New DelhiMason City to Bangkok
New York to Rio de JaneiroLondon to Rio de JaneiroLos Angeles to Rio de JaneiroChicago to Rio de JaneiroToronto to Rio de JaneiroSão Paulo to Rio de JaneiroParis to Rio de JaneiroBerlin to Rio de JaneiroMoscow to Rio de JaneiroDubai to Rio de JaneiroNew Delhi to Rio de JaneiroBangkok to Rio de Janeiro

Questions and answers

What is the time difference between Mason City and Rio de Janeiro?

Rio de Janeiro is 2 hours ahead of Mason City.

What time is it in Rio de Janeiro when it is 9 AM in Mason City?

When it is 9:00 AM in Mason City, it is 11:00 AM in Rio de Janeiro.

When is the best time to call Rio de Janeiro from Mason City?

Both sides are at work from 9:00 AM – 4:00 PM in Mason City (11:00 AM – 6:00 PM in Rio de Janeiro).

Does the time difference between Mason City and Rio de Janeiro change?

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