Porto to Casimiro de Abreu time converter

Casimiro de Abreu is 4 hours behind Porto. When it is 9:00 AM in Porto, it is 5:00 AM in Casimiro de Abreu.

Porto WEST

Thursday, October 22, 2026

Casimiro de Abreu BRT

Wednesday, October 21, 2026

Porto
Portugal
Thu, Oct 22
WESTUTC+1
Casimiro de Abreu
Rio de Janeiro, Brazil
Wed, Oct 21
BRTUTC-3-4h
Finding your time zone…
Shared working hours (9:00–18:00)

Porto to Casimiro de Abreu conversion table

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

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

Best time to call or meet

Both sides are at work from 1:00 PM – 6:00 PM in Porto (9:00 AM – 2:00 PM in Casimiro de Abreu).

Daylight saving time and the difference

The difference changes during the year because Porto and Casimiro de Abreu switch clocks on different dates:

  • Oct 22, 2026 – Oct 25, 2026: -4h
  • Oct 25, 2026 – Mar 28, 2027: -3h
  • Mar 28, 2027 – Oct 22, 2027: -4h

Distance

Porto and Casimiro de Abreu are 7,879 km (4,896 miles) apart in a straight line.

More conversions

Casimiro de Abreu to PortoPorto to New YorkPorto to LondonPorto to Los AngelesPorto to ChicagoPorto to TorontoPorto to São PauloPorto to ParisPorto to BerlinPorto to MoscowPorto to DubaiPorto to New DelhiPorto to Bangkok
New York to Casimiro de AbreuLondon to Casimiro de AbreuLos Angeles to Casimiro de AbreuChicago to Casimiro de AbreuToronto to Casimiro de AbreuSão Paulo to Casimiro de AbreuParis to Casimiro de AbreuBerlin to Casimiro de AbreuMoscow to Casimiro de AbreuDubai to Casimiro de AbreuNew Delhi to Casimiro de AbreuBangkok to Casimiro de Abreu

Questions and answers

What is the time difference between Porto and Casimiro de Abreu?

Casimiro de Abreu is 4 hours behind Porto.

What time is it in Casimiro de Abreu when it is 9 AM in Porto?

When it is 9:00 AM in Porto, it is 5:00 AM in Casimiro de Abreu.

When is the best time to call Casimiro de Abreu from Porto?

Both sides are at work from 1:00 PM – 6:00 PM in Porto (9:00 AM – 2:00 PM in Casimiro de Abreu).

Does the time difference between Porto and Casimiro de Abreu change?

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