🇿🇦 Johannesburg ↔ 🇺🇸 San Francisco
Johannesburg is usually 9 hours ahead of San Francisco. San Francisco observes daylight saving time and Johannesburg does not, so the difference shifts by an hour around the changeovers.
Sunrise 6:56 AMSunset 5:26 PM(local)
Sunrise 5:49 AMSunset 8:36 PM(local)
🇿🇦 Johannesburg
Dialing code+27
Population9,418,183
Coordinates26.20°S, 28.04°E
Elevation1,767 m
🇺🇸 San Francisco
Dialing code+1
Population827,526
Coordinates37.77°N, 122.42°W
Elevation16 m
No comfortable common working hours — these cities barely overlap.
Working hours assumed 9:00–18:00.
Frequently asked questions
- What is the time difference between Johannesburg and San Francisco?
- Johannesburg is 9 hours ahead of San Francisco. Use the side-by-side clocks and the day/night strips above to convert any hour between them.
- When is the best time to call between Johannesburg and San Francisco?
- There is no hour when standard working hours (9:00–18:00) overlap in both Johannesburg and San Francisco, so any call falls outside business hours for at least one side.
- Why does the time difference between Johannesburg and San Francisco change?
- Because at least one of Johannesburg and San Francisco observes daylight saving time, the difference shifts by an hour when one city changes its clocks and the other has not yet (or does not).