Rio de Janeiro to Mason time converter

Mason is 1 hour behind Rio de Janeiro. When it is 9:00 AM in Rio de Janeiro, it is 8:00 AM in Mason.

Rio de Janeiro BRT

Tuesday, October 20, 2026

Mason EDT

Tuesday, October 20, 2026

Rio de Janeiro
Brazil
Tue, Oct 20
BRTUTC-3
Mason
Ohio, United States
Tue, Oct 20
EDTUTC-4-1h
Finding your time zone…
Shared working hours (9:00–18:00)

Rio de Janeiro to Mason conversion table

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

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

Best time to call or meet

Both sides are at work from 10:00 AM – 6:00 PM in Rio de Janeiro (9:00 AM – 5:00 PM in Mason).

Daylight saving time and the difference

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

  • Oct 20, 2026 – Nov 1, 2026: -1h
  • Nov 1, 2026 – Mar 14, 2027: -2h
  • Mar 14, 2027 – Oct 20, 2027: -1h

Distance

Rio de Janeiro and Mason are 8,136 km (5,055 miles) apart in a straight line.

More conversions

Mason 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 MasonLondon to MasonLos Angeles to MasonChicago to MasonToronto to MasonSão Paulo to MasonParis to MasonBerlin to MasonMoscow to MasonDubai to MasonNew Delhi to MasonBangkok to Mason

Questions and answers

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

Mason is 1 hour behind Rio de Janeiro.

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

When it is 9:00 AM in Rio de Janeiro, it is 8:00 AM in Mason.

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

Both sides are at work from 10:00 AM – 6:00 PM in Rio de Janeiro (9:00 AM – 5:00 PM in Mason).

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

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