Porto to Biddeford time converter

Biddeford is 5 hours behind Porto. When it is 9:00 AM in Porto, it is 4:00 AM in Biddeford.

Porto WEST

Tuesday, October 20, 2026

Biddeford EDT

Tuesday, October 20, 2026

Portugal
Tue, Oct 20
WESTUTC+1
Maine, United States
Tue, Oct 20
EDTUTC-4-5h
Finding your time zone…

3:52 PM in Porto, Tuesday, October 20, 2026

Shared working hours (9:00–18:00)

Porto to Biddeford conversion table

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

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

Best time to call or meet

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

Daylight saving time and the difference

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

  • Oct 20, 2026 – Oct 25, 2026: -5h
  • Oct 25, 2026 – Nov 1, 2026: -4h
  • Nov 1, 2026 – Mar 14, 2027: -5h
  • Mar 14, 2027 – Mar 28, 2027: -4h
  • Mar 28, 2027 – Oct 20, 2027: -5h

Distance

Porto and Biddeford are 4,972 km (3,089 miles) apart in a straight line.

More conversions

Questions and answers

What is the time difference between Porto and Biddeford?

Biddeford is 5 hours behind Porto.

What time is it in Biddeford when it is 9 AM in Porto?

When it is 9:00 AM in Porto, it is 4:00 AM in Biddeford.

When is the best time to call Biddeford from Porto?

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

Does the time difference between Porto and Biddeford change?

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