Great Falls to Johannesburg time converter
Johannesburg is 8 hours ahead of Great Falls. When it is 9:00 AM in Great Falls, it is 5:00 PM in Johannesburg.
Great Falls MDT
Wednesday, October 21, 2026
Johannesburg SAST
Wednesday, October 21, 2026
10:43 AM in Great Falls, Wednesday, October 21, 2026
Great Falls to Johannesburg conversion table
Every hour of today in Great Falls and the matching time in Johannesburg. Light rows are typical working hours (9:00–18:00).
| Great Falls | Johannesburg |
|---|---|
| 12:00 AM | 8:00 AM |
| 1:00 AM | 9:00 AM |
| 2:00 AM | 10:00 AM |
| 3:00 AM | 11:00 AM |
| 4:00 AM | 12:00 PM |
| 5:00 AM | 1:00 PM |
| 6:00 AM | 2:00 PM |
| 7:00 AM | 3:00 PM |
| 8:00 AM | 4:00 PM |
| 9:00 AM | 5:00 PM |
| 10:00 AM | 6:00 PM |
| 11:00 AM | 7:00 PM |
| 12:00 PM | 8:00 PM |
| 1:00 PM | 9:00 PM |
| 2:00 PM | 10:00 PM |
| 3:00 PM | 11:00 PM |
| 4:00 PM | 12:00 AM+1 day |
| 5:00 PM | 1:00 AM+1 day |
| 6:00 PM | 2:00 AM+1 day |
| 7:00 PM | 3:00 AM+1 day |
| 8:00 PM | 4:00 AM+1 day |
| 9:00 PM | 5:00 AM+1 day |
| 10:00 PM | 6:00 AM+1 day |
| 11:00 PM | 7:00 AM+1 day |
Best time to call or meet
Both sides are at work from 9:00 AM – 10:00 AM in Great Falls (5:00 PM – 6:00 PM in Johannesburg).
Daylight saving time and the difference
The difference changes during the year because Great Falls and Johannesburg switch clocks on different dates:
- Oct 21, 2026 – Nov 1, 2026: +8h
- Nov 1, 2026 – Mar 14, 2027: +9h
- Mar 14, 2027 – Oct 21, 2027: +8h
Distance
Great Falls and Johannesburg are 15,763 km (9,795 miles) apart in a straight line.
More conversions
Questions and answers
What is the time difference between Great Falls and Johannesburg?
Johannesburg is 8 hours ahead of Great Falls.
What time is it in Johannesburg when it is 9 AM in Great Falls?
When it is 9:00 AM in Great Falls, it is 5:00 PM in Johannesburg.
When is the best time to call Johannesburg from Great Falls?
Both sides are at work from 9:00 AM – 10:00 AM in Great Falls (5:00 PM – 6:00 PM in Johannesburg).
Does the time difference between Great Falls and Johannesburg change?
Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.