Johannesburg ↔ Tehran
Best Time to Call
Excellent overlap! The best window to call is between 9:00 and 16:00 (Johannesburg time).
Sync Johannesburg and Tehran easily. Johannesburg is 1 hour 30 minutes behind Tehran. Excellent overlap! The best window to call is between 9:00 and 16:00 (Johannesburg time).
Upcoming Time Change
- New York City clocks forward 1h in 11 days Mar 09
💡 Review recurring meetings scheduled during these dates to avoid sync issues.
Meeting Optimizer
Sync Score
3.3/10
-12h Current Time +12h
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Tokyo
15:37 GMT+9
Working
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New York City
01:37 EST
Sleeping
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London
06:37 GMT
Sleeping
Synchronization Context
With only a 1 hour 30 minutes difference, these cities share a near-total workday overlap. Coordination is seamless, with most business hours aligning perfectly.
Johannesburg Business Pulse
- Culture Fast-paced and competitive. The economic powerhouse of Africa.
- Lunch Break 1:00 PM - 2:00 PM.
- Pro Tip Best reached between 9:00 AM and 12:00 PM. South African business culture is direct and professional. Be aware of "Load Shedding" (scheduled power outages) which can affect your contact's availability and connectivity; it is a common professional courtesy to check on this.
Tehran Business Pulse
- Culture Relationship-heavy and formal. Respect for hierarchy is paramount.
- Lunch Break 1:00 PM - 2:00 PM.
- Pro Tip The work week is Saturday to Wednesday. Thursday is often a half-day. Call between 9:00 AM and 12:00 PM. Iranian business culture is very formal and involves "Taarof" (a complex system of etiquette); be patient, polite, and avoid rushing into business without proper greetings.
Quick Comparison
| Feature | Johannesburg | Tehran |
|---|---|---|
| Timezone | Africa/Johannesburg | Asia/Tehran |
| Country | South Africa | Iran |
| Coordinates | -26.20, 28.05 | 35.69, 51.39 |
| Population | 6,198,000 | 9,500,000 |