Port Arthur to Porto time converter

Porto is 6 hours ahead of Port Arthur. When it is 9:00 AM in Port Arthur, it is 3:00 PM in Porto.

Port Arthur CDT

Wednesday, October 21, 2026

Porto WEST

Wednesday, October 21, 2026

Port Arthur
Texas, United States
Wed, Oct 21
CDTUTC-5
Porto
Portugal
Wed, Oct 21
WESTUTC+1+6h
Finding your time zone…
Shared working hours (9:00–18:00)

Port Arthur to Porto conversion table

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

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

Best time to call or meet

Both sides are at work from 9:00 AM – 12:00 PM in Port Arthur (3:00 PM – 6:00 PM in Porto).

Daylight saving time and the difference

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

  • Oct 21, 2026 – Oct 24, 2026: +6h
  • Oct 24, 2026 – Nov 1, 2026: +5h
  • Nov 1, 2026 – Mar 14, 2027: +6h
  • Mar 14, 2027 – Mar 27, 2027: +5h
  • Mar 27, 2027 – Oct 21, 2027: +6h

Distance

Port Arthur and Porto are 7,517 km (4,671 miles) apart in a straight line.

More conversions

Porto to Port ArthurPort Arthur to New YorkPort Arthur to LondonPort Arthur to Los AngelesPort Arthur to ChicagoPort Arthur to TorontoPort Arthur to São PauloPort Arthur to ParisPort Arthur to BerlinPort Arthur to MoscowPort Arthur to DubaiPort Arthur to New DelhiPort Arthur to Bangkok
New York to PortoLondon to PortoLos Angeles to PortoChicago to PortoToronto to PortoSão Paulo to PortoParis to PortoBerlin to PortoMoscow to PortoDubai to PortoNew Delhi to PortoBangkok to Porto

Questions and answers

What is the time difference between Port Arthur and Porto?

Porto is 6 hours ahead of Port Arthur.

What time is it in Porto when it is 9 AM in Port Arthur?

When it is 9:00 AM in Port Arthur, it is 3:00 PM in Porto.

When is the best time to call Porto from Port Arthur?

Both sides are at work from 9:00 AM – 12:00 PM in Port Arthur (3:00 PM – 6:00 PM in Porto).

Does the time difference between Port Arthur and Porto change?

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