Chicago ↔ Tehran
Best Time to Call
Decent overlap available between 8:00 and 10:00 (Chicago time).
Sync Chicago and Tehran easily. Chicago is 9 hours 30 minutes behind Tehran. Decent overlap available between 8:00 and 10:00 (Chicago time).
Upcoming Time Change
- New York City clocks forward 1h in 10 days Mar 08
💡 Review recurring meetings scheduled during these dates to avoid sync issues.
Meeting Optimizer
Sync Score
6/10
-12h Current Time +12h
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Tokyo
18:24 GMT+9
Personal
Outside Business Hours🌍
New York City
04:24 EST
Sleeping
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London
09:24 GMT
Working
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.
Chicago Business Pulse
- Culture Practical, hardworking, and friendly. A major hub for logistics, finance, and manufacturing.
- Lunch Break 12:00 PM - 1:00 PM.
- Pro Tip Best times for calls are 9:00 AM to 11:30 AM. Chicagoans are known for being practical and direct but also friendlier than their East Coast counterparts. The Central Time Zone is the "Goldilocks zone" for North American business, allowing for easy syncs with both NYC and LA.
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 | Chicago | Tehran |
|---|---|---|
| Timezone | America/Chicago | Asia/Tehran |
| Country | USA | Iran |
| Coordinates | 41.88, -87.63 | 35.69, 51.39 |
| Population | 8,939,000 | 9,500,000 |