Porto to Castelar time converter

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

Porto WEST

Tuesday, October 20, 2026

Castelar ART

Tuesday, October 20, 2026

Porto
Portugal
Tue, Oct 20
WESTUTC+1
Castelar
Argentina
Tue, Oct 20
ARTUTC-3-4h
Finding your time zone…
Shared working hours (9:00–18:00)

Porto to Castelar conversion table

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

PortoCastelar
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 Castelar).

Daylight saving time and the difference

The difference changes during the year because Porto and Castelar 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 Castelar are 9,856 km (6,124 miles) apart in a straight line.

More conversions

Castelar 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 CastelarLondon to CastelarLos Angeles to CastelarChicago to CastelarToronto to CastelarSão Paulo to CastelarParis to CastelarBerlin to CastelarMoscow to CastelarDubai to CastelarNew Delhi to CastelarBangkok to Castelar

Questions and answers

What is the time difference between Porto and Castelar?

Castelar is 4 hours behind Porto.

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

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

When is the best time to call Castelar from Porto?

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

Does the time difference between Porto and Castelar change?

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