Back Bay to Lisbon time converter

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

Back Bay EDT

Sunday, October 18, 2026

Lisbon WEST

Monday, October 19, 2026

Back Bay
Massachusetts, United States
Sun, Oct 18
EDTUTC-4
Lisbon
Portugal
Mon, Oct 19
WESTUTC+1+5h
Finding your time zone…
Shared working hours (9:00–18:00)

Back Bay to Lisbon conversion table

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

Back BayLisbon
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 Lisbon).

Daylight saving time and the difference

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

  • Oct 18, 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 18, 2027: +5h

Distance

Back Bay and Lisbon are 5,133 km (3,189 miles) apart in a straight line.

More conversions

Lisbon 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 LisbonLondon to LisbonLos Angeles to LisbonChicago to LisbonToronto to LisbonSão Paulo to LisbonParis to LisbonBerlin to LisbonMoscow to LisbonDubai to LisbonNew Delhi to LisbonBangkok to Lisbon

Questions and answers

What is the time difference between Back Bay and Lisbon?

Lisbon is 5 hours ahead of Back Bay.

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

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

When is the best time to call Lisbon 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 Lisbon).

Does the time difference between Back Bay and Lisbon change?

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