Chicago ↔ Colombo
Best Time to Call
These cities have challenging overlap; use our slider to find a slot.
Sync Chicago and Colombo easily. Chicago is 11 hours 30 minutes behind Colombo. These cities have challenging overlap; use our slider to find a slot.
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
15:32 GMT+9
Working
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New York City
01:32 EST
Sleeping
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London
06:32 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.
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.
Colombo Business Pulse
- Culture Professional and hierarchical. Values personal rapport and education.
- Lunch Break 1:00 PM - 2:00 PM.
- Pro Tip Best call window is 10:00 AM to 12:00 PM. Sri Lankans value education and professional titles. Business culture is relational; spend time on polite introductions. Punctuality is appreciated. Be aware of potential power disruptions and have a backup communication plan like WhatsApp.
Quick Comparison
| Feature | Chicago | Colombo |
|---|---|---|
| Timezone | America/Chicago | Asia/Colombo |
| Country | USA | Sri Lanka |
| Coordinates | 41.88, -87.63 | 6.93, 79.86 |
| Population | 8,939,000 | 753,000 |