St Louis ↔ Tehran
Best Time to Call
Decent overlap available between 8:00 and 10:00 (St Louis time).
Sync St Louis and Tehran easily. St Louis is 9 hours 30 minutes behind Tehran. Decent overlap available between 8:00 and 10:00 (St Louis 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
15:34 GMT+9
Working
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New York City
01:34 EST
Sleeping
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London
06:34 GMT
Sleeping
Synchronization Context
Operating on opposite sides of the clock, these cities have virtually no overlapping business hours. Expect a 24-hour turnaround for most communications.
St Louis Business Pulse
- Culture Midwestern values of friendliness and hard work. Business is professional but often involves personal connection.
- Lunch Break Typically 12:00 PM - 1:00 PM.
- Pro Tip Operating in Central Time (CST/CDT), St Louis is a perfect bridge for coast-to-coast US calls. Reach out between 9:00 AM and 11:00 AM for the most engaged responses. A friendly, personal opening is culturally expected before diving into technical or business details.
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 | St Louis | Tehran |
|---|---|---|
| Timezone | America/Chicago | Asia/Tehran |
| Country | USA | Iran |
| Coordinates | 38.63, -90.20 | 35.69, 51.39 |
| Population | 301,578 | 9,500,000 |