Great Falls to Lisbon time converter

Lisbon is 7 hours ahead of Great Falls. When it is 9:00 AM in Great Falls, it is 4:00 PM in Lisbon.

Great Falls MDT

Monday, October 19, 2026

Lisbon WEST

Tuesday, October 20, 2026

Great Falls
Montana, United States
Mon, Oct 19
MDTUTC-6
Lisbon
Portugal
Tue, Oct 20
WESTUTC+1+7h
Finding your time zone…
Shared working hours (9:00–18:00)

Great Falls to Lisbon conversion table

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

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

Best time to call or meet

Both sides are at work from 9:00 AM – 11:00 AM in Great Falls (4:00 PM – 6:00 PM in Lisbon).

Daylight saving time and the difference

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

  • Oct 19, 2026 – Oct 24, 2026: +7h
  • Oct 24, 2026 – Nov 1, 2026: +6h
  • Nov 1, 2026 – Mar 14, 2027: +7h
  • Mar 14, 2027 – Mar 27, 2027: +6h
  • Mar 27, 2027 – Oct 19, 2027: +7h

Distance

Great Falls and Lisbon are 7,727 km (4,801 miles) apart in a straight line.

More conversions

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New York to LisbonLondon to LisbonLos Angeles to LisbonChicago to LisbonToronto to LisbonSão Paulo to LisbonParis to LisbonBerlin to LisbonMoscow to LisbonDubai to LisbonNew Delhi to LisbonBangkok to Lisbon

Questions and answers

What is the time difference between Great Falls and Lisbon?

Lisbon is 7 hours ahead of Great Falls.

What time is it in Lisbon when it is 9 AM in Great Falls?

When it is 9:00 AM in Great Falls, it is 4:00 PM in Lisbon.

When is the best time to call Lisbon from Great Falls?

Both sides are at work from 9:00 AM – 11:00 AM in Great Falls (4:00 PM – 6:00 PM in Lisbon).

Does the time difference between Great Falls and Lisbon change?

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