Lisbon to Oak Ridge time converter

Oak Ridge is 5 hours behind Lisbon. When it is 9:00 AM in Lisbon, it is 4:00 AM in Oak Ridge.

Lisbon WEST

Tuesday, October 20, 2026

Oak Ridge EDT

Tuesday, October 20, 2026

Lisbon
Portugal
Tue, Oct 20
WESTUTC+1
Oak Ridge
Tennessee, United States
Tue, Oct 20
EDTUTC-4-5h
Finding your time zone…
Shared working hours (9:00–18:00)

Lisbon to Oak Ridge conversion table

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

LisbonOak Ridge
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 Lisbon (9:00 AM – 1:00 PM in Oak Ridge).

Daylight saving time and the difference

The difference changes during the year because Lisbon and Oak Ridge 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

Lisbon and Oak Ridge are 6,450 km (4,008 miles) apart in a straight line.

More conversions

Oak Ridge to LisbonLisbon to New YorkLisbon to LondonLisbon to Los AngelesLisbon to ChicagoLisbon to TorontoLisbon to São PauloLisbon to ParisLisbon to BerlinLisbon to MoscowLisbon to DubaiLisbon to New DelhiLisbon to Bangkok
New York to Oak RidgeLondon to Oak RidgeLos Angeles to Oak RidgeChicago to Oak RidgeToronto to Oak RidgeSão Paulo to Oak RidgeParis to Oak RidgeBerlin to Oak RidgeMoscow to Oak RidgeDubai to Oak RidgeNew Delhi to Oak RidgeBangkok to Oak Ridge

Questions and answers

What is the time difference between Lisbon and Oak Ridge?

Oak Ridge is 5 hours behind Lisbon.

What time is it in Oak Ridge when it is 9 AM in Lisbon?

When it is 9:00 AM in Lisbon, it is 4:00 AM in Oak Ridge.

When is the best time to call Oak Ridge from Lisbon?

Both sides are at work from 2:00 PM – 6:00 PM in Lisbon (9:00 AM – 1:00 PM in Oak Ridge).

Does the time difference between Lisbon and Oak Ridge change?

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