Lisbon to Williamstown time converter

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

Lisbon WEST

Monday, October 19, 2026

Williamstown EDT

Monday, October 19, 2026

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

Lisbon to Williamstown conversion table

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

LisbonWilliamstown
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 Williamstown).

Daylight saving time and the difference

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

  • Oct 19, 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 19, 2027: -5h

Distance

Lisbon and Williamstown are 5,540 km (3,442 miles) apart in a straight line.

More conversions

Williamstown 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 WilliamstownLondon to WilliamstownLos Angeles to WilliamstownChicago to WilliamstownToronto to WilliamstownSão Paulo to WilliamstownParis to WilliamstownBerlin to WilliamstownMoscow to WilliamstownDubai to WilliamstownNew Delhi to WilliamstownBangkok to Williamstown

Questions and answers

What is the time difference between Lisbon and Williamstown?

Williamstown is 5 hours behind Lisbon.

What time is it in Williamstown when it is 9 AM in Lisbon?

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

When is the best time to call Williamstown from Lisbon?

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

Does the time difference between Lisbon and Williamstown change?

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