San Antonio to Porto time converter

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

San Antonio CDT

Tuesday, October 20, 2026

Porto WEST

Wednesday, October 21, 2026

San Antonio
Texas, United States
Tue, Oct 20
CDTUTC-5
Porto
Portugal
Wed, Oct 21
WESTUTC+1+6h
Finding your time zone…
Shared working hours (9:00–18:00)

San Antonio to Porto conversion table

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

San AntonioPorto
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 San Antonio (3:00 PM – 6:00 PM in Porto).

Daylight saving time and the difference

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

  • Oct 20, 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 20, 2027: +6h

Distance

San Antonio and Porto are 7,901 km (4,909 miles) apart in a straight line.

More conversions

Porto to San AntonioSan Antonio to New YorkSan Antonio to LondonSan Antonio to Los AngelesSan Antonio to ChicagoSan Antonio to TorontoSan Antonio to São PauloSan Antonio to ParisSan Antonio to BerlinSan Antonio to MoscowSan Antonio to DubaiSan Antonio to New DelhiSan Antonio 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 San Antonio and Porto?

Porto is 6 hours ahead of San Antonio.

What time is it in Porto when it is 9 AM in San Antonio?

When it is 9:00 AM in San Antonio, it is 3:00 PM in Porto.

When is the best time to call Porto from San Antonio?

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

Does the time difference between San Antonio 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.