Lisbon to Oak Forest time converter

Oak Forest is 6 hours behind Lisbon. When it is 9:00 AM in Lisbon, it is 3:00 AM in Oak Forest.

Lisbon WEST

Sunday, October 18, 2026

Oak Forest CDT

Sunday, October 18, 2026

Lisbon
Portugal
Sun, Oct 18
WESTUTC+1
Oak Forest
Illinois, United States
Sun, Oct 18
CDTUTC-5-6h
Finding your time zone…
Shared working hours (9:00–18:00)

Lisbon to Oak Forest conversion table

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

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

Best time to call or meet

Both sides are at work from 3:00 PM – 6:00 PM in Lisbon (9:00 AM – 12:00 PM in Oak Forest).

Daylight saving time and the difference

The difference changes during the year because Lisbon and Oak Forest switch clocks on different dates:

  • Oct 18, 2026 – Oct 25, 2026: -6h
  • Oct 25, 2026 – Nov 1, 2026: -5h
  • Nov 1, 2026 – Mar 14, 2027: -6h
  • Mar 14, 2027 – Mar 28, 2027: -5h
  • Mar 28, 2027 – Oct 18, 2027: -6h

Distance

Lisbon and Oak Forest are 6,443 km (4,003 miles) apart in a straight line.

More conversions

Oak Forest 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 ForestLondon to Oak ForestLos Angeles to Oak ForestChicago to Oak ForestToronto to Oak ForestSão Paulo to Oak ForestParis to Oak ForestBerlin to Oak ForestMoscow to Oak ForestDubai to Oak ForestNew Delhi to Oak ForestBangkok to Oak Forest

Questions and answers

What is the time difference between Lisbon and Oak Forest?

Oak Forest is 6 hours behind Lisbon.

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

When it is 9:00 AM in Lisbon, it is 3:00 AM in Oak Forest.

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

Both sides are at work from 3:00 PM – 6:00 PM in Lisbon (9:00 AM – 12:00 PM in Oak Forest).

Does the time difference between Lisbon and Oak Forest change?

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