Vienna to Great Falls time converter

Great Falls is 8 hours behind Vienna. When it is 9:00 AM in Vienna, it is 1:00 AM in Great Falls.

Vienna CEST

Tuesday, October 20, 2026

Great Falls MDT

Monday, October 19, 2026

Vienna
Austria
Tue, Oct 20
CESTUTC+2
Great Falls
Montana, United States
Mon, Oct 19
MDTUTC-6-8h
Finding your time zone…
Shared working hours (9:00–18:00)

Vienna to Great Falls conversion table

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

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

Best time to call or meet

Both sides are at work from 5:00 PM – 6:00 PM in Vienna (9:00 AM – 10:00 AM in Great Falls).

Daylight saving time and the difference

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

  • Oct 20, 2026 – Oct 25, 2026: -8h
  • Oct 25, 2026 – Nov 1, 2026: -7h
  • Nov 1, 2026 – Mar 14, 2027: -8h
  • Mar 14, 2027 – Mar 28, 2027: -7h
  • Mar 28, 2027 – Oct 20, 2027: -8h

Distance

Vienna and Great Falls are 8,236 km (5,118 miles) apart in a straight line.

More conversions

Great Falls to ViennaVienna to New YorkVienna to LondonVienna to Los AngelesVienna to ChicagoVienna to TorontoVienna to São PauloVienna to ParisVienna to BerlinVienna to MoscowVienna to DubaiVienna to New DelhiVienna to Bangkok
New York to Great FallsLondon to Great FallsLos Angeles to Great FallsChicago to Great FallsToronto to Great FallsSão Paulo to Great FallsParis to Great FallsBerlin to Great FallsMoscow to Great FallsDubai to Great FallsNew Delhi to Great FallsBangkok to Great Falls

Questions and answers

What is the time difference between Vienna and Great Falls?

Great Falls is 8 hours behind Vienna.

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

When it is 9:00 AM in Vienna, it is 1:00 AM in Great Falls.

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

Both sides are at work from 5:00 PM – 6:00 PM in Vienna (9:00 AM – 10:00 AM in Great Falls).

Does the time difference between Vienna and Great Falls change?

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