Back Bay to Porto time converter

Porto is 5 hours ahead of Back Bay. When it is 9:00 AM in Back Bay, it is 2:00 PM in Porto.

Back Bay EDT

Tuesday, October 20, 2026

Porto WEST

Tuesday, October 20, 2026

Back Bay
Massachusetts, United States
Tue, Oct 20
EDTUTC-4
Porto
Portugal
Tue, Oct 20
WESTUTC+1+5h
Finding your time zone…
Shared working hours (9:00–18:00)

Back Bay to Porto conversion table

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

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

Best time to call or meet

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

Daylight saving time and the difference

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

  • Oct 20, 2026 – Oct 24, 2026: +5h
  • Oct 24, 2026 – Nov 1, 2026: +4h
  • Nov 1, 2026 – Mar 14, 2027: +5h
  • Mar 14, 2027 – Mar 27, 2027: +4h
  • Mar 27, 2027 – Oct 20, 2027: +5h

Distance

Back Bay and Porto are 5,063 km (3,146 miles) apart in a straight line.

More conversions

Porto to Back BayBack Bay to New YorkBack Bay to LondonBack Bay to Los AngelesBack Bay to ChicagoBack Bay to TorontoBack Bay to São PauloBack Bay to ParisBack Bay to BerlinBack Bay to MoscowBack Bay to DubaiBack Bay to New DelhiBack Bay 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 Back Bay and Porto?

Porto is 5 hours ahead of Back Bay.

What time is it in Porto when it is 9 AM in Back Bay?

When it is 9:00 AM in Back Bay, it is 2:00 PM in Porto.

When is the best time to call Porto from Back Bay?

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

Does the time difference between Back Bay 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.