London zone
GMT+1 (GMT+1)
Johannesburg zone
GMT+2 (GMT+2)
Difference
1 hour ahead of London
Business overlap
7h (9-5 windows)
Working hours overlap
Each cell is one hour in London. Filled cells mark when 9 AM – 5 PM in London and Johannesburg both apply.
7 hours per day
- London
- GMT+1
- Johannesburg
- GMT+2
- Difference
- +1h
- Business overlap
- 7h
Hour-by-hour conversion
Each row shows the matching local time in Johannesburg for an hour in London.
| London | Johannesburg | Day | Window |
|---|---|---|---|
| 12:00 AM | 1:00 AM | same day | — |
| 1:00 AM | 2:00 AM | same day | — |
| 2:00 AM | 3:00 AM | same day | — |
| 3:00 AM | 4:00 AM | same day | — |
| 4:00 AM | 5:00 AM | same day | — |
| 5:00 AM | 6:00 AM | same day | — |
| 6:00 AM | 7:00 AM | same day | — |
| 7:00 AM | 8:00 AM | same day | — |
| 8:00 AM | 9:00 AM | same day | — |
| 9:00 AM | 10:00 AM | same day | Both 9-5 |
| 10:00 AM | 11:00 AM | same day | Both 9-5 |
| 11:00 AM | 12:00 PM | same day | Both 9-5 |
| 12:00 PM | 1:00 PM | same day | Both 9-5 |
| 1:00 PM | 2:00 PM | same day | Both 9-5 |
| 2:00 PM | 3:00 PM | same day | Both 9-5 |
| 3:00 PM | 4:00 PM | same day | Both 9-5 |
| 4:00 PM | 5:00 PM | same day | — |
| 5:00 PM | 6:00 PM | same day | — |
| 6:00 PM | 7:00 PM | same day | — |
| 7:00 PM | 8:00 PM | same day | — |
| 8:00 PM | 9:00 PM | same day | — |
| 9:00 PM | 10:00 PM | same day | — |
| 10:00 PM | 11:00 PM | same day | — |
| 11:00 PM | 12:00 AM | next day | — |
Best meeting windows
If both teams keep standard 9 AM – 5 PM hours, the overlap window is roughly 9:00 AM – 4:00 PM in London time. That gives you 7 hours per workday for live meetings.
Tighter overlap is achievable by having the side with later working hours start earlier, or by treating the first and last hours of each side as flexible. The bar above marks every hour where both cities sit inside a 9 AM – 5 PM window.
About converting London time to Johannesburg time
London follows the Europe/London time zone (currently GMT+1, GMT+1), while Johannesburg follows Africa/Johannesburg (currently GMT+2, GMT+2). Johannesburg is 1 hour ahead of London right now.
London observes daylight saving time, while Johannesburg does not. The offset between the two cities changes by one hour at the daylight saving transitions.
Daylight saving transitions in 2026
London
- Spring forward · Sunday, March 29, 2026
- Fall back · Sunday, October 25, 2026
Johannesburg
Does not observe daylight saving time.
Reverse this conversion
Johannesburg to London
Open the converter
Plan a meeting between London and Johannesburg
More conversions from London
Frequently asked questions
- How many hours is London from Johannesburg?
- Johannesburg is 1 hour ahead of London right now.
- What time is 9:00 AM London in Johannesburg?
- 9:00 AM in London is 10:00 AM in Johannesburg.
- What time is 5:00 PM London in Johannesburg?
- 5:00 PM in London is 6:00 PM in Johannesburg.
- When do London and Johannesburg business hours overlap?
- Standard 9 AM - 5 PM working hours overlap for about 7 hours, roughly from 9:00 AM to 4:00 PM in London time.
- Does daylight saving time change the difference between London and Johannesburg?
- London observes daylight saving time while Johannesburg does not, so the offset between them changes by one hour twice a year.
Local time page
Time in London
Local time page
Time in Johannesburg