Rio de Janeiro to Mason City time converter

Mason City is 2 hours behind Rio de Janeiro. When it is 9:00 AM in Rio de Janeiro, it is 7:00 AM in Mason City.

Rio de Janeiro BRT

Wednesday, October 21, 2026

Mason City CDT

Wednesday, October 21, 2026

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

Rio de Janeiro to Mason City conversion table

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

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

Best time to call or meet

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

Daylight saving time and the difference

The difference changes during the year because Rio de Janeiro and Mason City 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

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

More conversions

Mason City to Rio de JaneiroRio de Janeiro to New YorkRio de Janeiro to LondonRio de Janeiro to Los AngelesRio de Janeiro to ChicagoRio de Janeiro to TorontoRio de Janeiro to São PauloRio de Janeiro to ParisRio de Janeiro to BerlinRio de Janeiro to MoscowRio de Janeiro to DubaiRio de Janeiro to New DelhiRio de Janeiro to Bangkok
New York to Mason CityLondon to Mason CityLos Angeles to Mason CityChicago to Mason CityToronto to Mason CitySão Paulo to Mason CityParis to Mason CityBerlin to Mason CityMoscow to Mason CityDubai to Mason CityNew Delhi to Mason CityBangkok to Mason City

Questions and answers

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

Mason City is 2 hours behind Rio de Janeiro.

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

When it is 9:00 AM in Rio de Janeiro, it is 7:00 AM in Mason City.

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

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

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

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