Porto to Knoxville time converter

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

Porto WEST

Wednesday, October 21, 2026

Knoxville EDT

Wednesday, October 21, 2026

Porto
Portugal
Wed, Oct 21
WESTUTC+1
Knoxville
Tennessee, United States
Wed, Oct 21
EDTUTC-4-5h
Finding your time zone…
Shared working hours (9:00–18:00)

Porto to Knoxville conversion table

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

PortoKnoxville
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 Knoxville).

Daylight saving time and the difference

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

  • Oct 21, 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 21, 2027: -5h

Distance

Porto and Knoxville are 6,366 km (3,956 miles) apart in a straight line.

More conversions

Knoxville to PortoPorto to New YorkPorto to LondonPorto to Los AngelesPorto to ChicagoPorto to TorontoPorto to São PauloPorto to ParisPorto to BerlinPorto to MoscowPorto to DubaiPorto to New DelhiPorto to Bangkok
New York to KnoxvilleLondon to KnoxvilleLos Angeles to KnoxvilleChicago to KnoxvilleToronto to KnoxvilleSão Paulo to KnoxvilleParis to KnoxvilleBerlin to KnoxvilleMoscow to KnoxvilleDubai to KnoxvilleNew Delhi to KnoxvilleBangkok to Knoxville

Questions and answers

What is the time difference between Porto and Knoxville?

Knoxville is 5 hours behind Porto.

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

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

When is the best time to call Knoxville from Porto?

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

Does the time difference between Porto and Knoxville change?

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