Big Spring to Porto time converter

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

Big Spring CDT

Monday, October 19, 2026

Porto WEST

Monday, October 19, 2026

Big Spring
Texas, United States
Mon, Oct 19
CDTUTC-5
Porto
Portugal
Mon, Oct 19
WESTUTC+1+6h
Finding your time zone…
Shared working hours (9:00–18:00)

Big Spring to Porto conversion table

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

Big SpringPorto
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 Big Spring (3:00 PM – 6:00 PM in Porto).

Daylight saving time and the difference

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

  • Oct 19, 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 19, 2027: +6h

Distance

Big Spring and Porto are 7,937 km (4,932 miles) apart in a straight line.

More conversions

Porto to Big SpringBig Spring to New YorkBig Spring to LondonBig Spring to Los AngelesBig Spring to ChicagoBig Spring to TorontoBig Spring to São PauloBig Spring to ParisBig Spring to BerlinBig Spring to MoscowBig Spring to DubaiBig Spring to New DelhiBig Spring 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 Big Spring and Porto?

Porto is 6 hours ahead of Big Spring.

What time is it in Porto when it is 9 AM in Big Spring?

When it is 9:00 AM in Big Spring, it is 3:00 PM in Porto.

When is the best time to call Porto from Big Spring?

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

Does the time difference between Big Spring 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.