Rio de Janeiro to Viana do Castelo time converter

Viana do Castelo is 4 hours ahead of Rio de Janeiro. When it is 9:00 AM in Rio de Janeiro, it is 1:00 PM in Viana do Castelo.

Rio de Janeiro BRT

Wednesday, October 21, 2026

Viana do Castelo WEST

Wednesday, October 21, 2026

Rio de Janeiro
Brazil
Wed, Oct 21
BRTUTC-3
Viana do Castelo
Portugal
Wed, Oct 21
WESTUTC+1+4h
Finding your time zone…
Shared working hours (9:00–18:00)

Rio de Janeiro to Viana do Castelo conversion table

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

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

Best time to call or meet

Both sides are at work from 9:00 AM – 2:00 PM in Rio de Janeiro (1:00 PM – 6:00 PM in Viana do Castelo).

Daylight saving time and the difference

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

  • Oct 21, 2026 – Oct 24, 2026: +4h
  • Oct 24, 2026 – Mar 27, 2027: +3h
  • Mar 27, 2027 – Oct 21, 2027: +4h

Distance

Rio de Janeiro and Viana do Castelo are 8,006 km (4,975 miles) apart in a straight line.

More conversions

Viana do Castelo 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 Viana do CasteloLondon to Viana do CasteloLos Angeles to Viana do CasteloChicago to Viana do CasteloToronto to Viana do CasteloSão Paulo to Viana do CasteloParis to Viana do CasteloBerlin to Viana do CasteloMoscow to Viana do CasteloDubai to Viana do CasteloNew Delhi to Viana do CasteloBangkok to Viana do Castelo

Questions and answers

What is the time difference between Rio de Janeiro and Viana do Castelo?

Viana do Castelo is 4 hours ahead of Rio de Janeiro.

What time is it in Viana do Castelo when it is 9 AM in Rio de Janeiro?

When it is 9:00 AM in Rio de Janeiro, it is 1:00 PM in Viana do Castelo.

When is the best time to call Viana do Castelo from Rio de Janeiro?

Both sides are at work from 9:00 AM – 2:00 PM in Rio de Janeiro (1:00 PM – 6:00 PM in Viana do Castelo).

Does the time difference between Rio de Janeiro and Viana do Castelo change?

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