Great Falls to Sydney time converter

Sydney is 17 hours ahead of Great Falls. When it is 9:00 AM in Great Falls, it is 2:00 AM (Mon, Oct 19) in Sydney.

Great Falls MDT

Sunday, October 18, 2026

Sydney AEDT

Monday, October 19, 2026

Great Falls
Montana, United States
Sun, Oct 18
MDTUTC-6
Sydney
New South Wales, Australia
Mon, Oct 19
AEDTUTC+11+17h
Finding your time zone…
Shared working hours (9:00–18:00)

Great Falls to Sydney conversion table

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

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

Best time to call or meet

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

Daylight saving time and the difference

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

  • Oct 18, 2026 – Nov 1, 2026: +17h
  • Nov 1, 2026 – Mar 14, 2027: +18h
  • Mar 14, 2027 – Apr 3, 2027: +17h
  • Apr 3, 2027 – Oct 2, 2027: +16h
  • Oct 2, 2027 – Oct 18, 2027: +17h

Distance

Great Falls and Sydney are 13,226 km (8,218 miles) apart in a straight line.

More conversions

Sydney to Great FallsGreat Falls to New YorkGreat Falls to LondonGreat Falls to Los AngelesGreat Falls to ChicagoGreat Falls to TorontoGreat Falls to São PauloGreat Falls to ParisGreat Falls to BerlinGreat Falls to MoscowGreat Falls to DubaiGreat Falls to New DelhiGreat Falls to Bangkok
New York to SydneyLondon to SydneyLos Angeles to SydneyChicago to SydneyToronto to SydneySão Paulo to SydneyParis to SydneyBerlin to SydneyMoscow to SydneyDubai to SydneyNew Delhi to SydneyBangkok to Sydney

Questions and answers

What is the time difference between Great Falls and Sydney?

Sydney is 17 hours ahead of Great Falls.

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

When it is 9:00 AM in Great Falls, it is 2:00 AM (Mon, Oct 19) in Sydney.

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

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

Does the time difference between Great Falls and Sydney change?

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