Great Falls to Riyadh time converter

Riyadh is 9 hours ahead of Great Falls. When it is 9:00 AM in Great Falls, it is 6:00 PM in Riyadh.

Great Falls MDT

Sunday, October 18, 2026

Riyadh AST

Sunday, October 18, 2026

Great Falls
Montana, United States
Sun, Oct 18
MDTUTC-6
Riyadh
Saudi Arabia
Sun, Oct 18
ASTUTC+3+9h
Finding your time zone…
Shared working hours (9:00–18:00)

Great Falls to Riyadh conversion table

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

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

Best time to call or meet

Working hours don't overlap fully. The closest fit is 7:00 AM – 9:00 AM in Great Falls (4:00 PM – 6:00 PM in Riyadh): working hours on one side, early or late on the other.

Daylight saving time and the difference

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

  • Oct 18, 2026 – Nov 1, 2026: +9h
  • Nov 1, 2026 – Mar 14, 2027: +10h
  • Mar 14, 2027 – Oct 18, 2027: +9h

Distance

Great Falls and Riyadh are 11,692 km (7,265 miles) apart in a straight line.

More conversions

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Questions and answers

What is the time difference between Great Falls and Riyadh?

Riyadh is 9 hours ahead of Great Falls.

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

When it is 9:00 AM in Great Falls, it is 6:00 PM in Riyadh.

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

Working hours don't overlap fully. The closest fit is 7:00 AM – 9:00 AM in Great Falls (4:00 PM – 6:00 PM in Riyadh): working hours on one side, early or late on the other.

Does the time difference between Great Falls and Riyadh change?

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