Great Falls to London time converter

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

Great Falls MDT

Tuesday, October 20, 2026

London BST

Tuesday, October 20, 2026

Montana, United States
Tue, Oct 20
MDTUTC-6
United Kingdom
Tue, Oct 20
BSTUTC+1+7h
Finding your time zone…

12:01 AM in Great Falls, Tuesday, October 20, 2026

Shared working hours (9:00–18:00)

Great Falls to London conversion table

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

Great FallsLondon
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 London).

Daylight saving time and the difference

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

  • Oct 20, 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 20, 2027: +7h

Distance

Great Falls and London are 7,210 km (4,480 miles) apart in a straight line.

More conversions

Questions and answers

What is the time difference between Great Falls and London?

London is 7 hours ahead of Great Falls.

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

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

When is the best time to call London 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 London).

Does the time difference between Great Falls and London change?

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