Porto to Castilho time converter

Castilho is 4 hours behind Porto. When it is 9:00 AM in Porto, it is 5:00 AM in Castilho.

Porto WEST

Tuesday, October 20, 2026

Castilho BRT

Tuesday, October 20, 2026

Porto
Portugal
Tue, Oct 20
WESTUTC+1
Castilho
São Paulo, Brazil
Tue, Oct 20
BRTUTC-3-4h
Finding your time zone…
Shared working hours (9:00–18:00)

Porto to Castilho conversion table

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

PortoCastilho
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 Castilho).

Daylight saving time and the difference

The difference changes during the year because Porto and Castilho switch clocks on different dates:

  • Oct 20, 2026 – Oct 25, 2026: -4h
  • Oct 25, 2026 – Mar 28, 2027: -3h
  • Mar 28, 2027 – Oct 20, 2027: -4h

Distance

Porto and Castilho are 8,192 km (5,090 miles) apart in a straight line.

More conversions

Castilho 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 CastilhoLondon to CastilhoLos Angeles to CastilhoChicago to CastilhoToronto to CastilhoSão Paulo to CastilhoParis to CastilhoBerlin to CastilhoMoscow to CastilhoDubai to CastilhoNew Delhi to CastilhoBangkok to Castilho

Questions and answers

What is the time difference between Porto and Castilho?

Castilho is 4 hours behind Porto.

What time is it in Castilho when it is 9 AM in Porto?

When it is 9:00 AM in Porto, it is 5:00 AM in Castilho.

When is the best time to call Castilho from Porto?

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

Does the time difference between Porto and Castilho change?

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