Colombo ↔ Kolkata
Best Time to Call
Excellent overlap! The best window to call is between 9:00 and 17:00 (Colombo time).
Colombo and Kolkata are in the same timezone. Excellent overlap! The best window to call is between 9:00 and 17:00 (Colombo 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
15:35 GMT+9
Working
🌍
New York City
01:35 EST
Sleeping
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London
06:35 GMT
Sleeping
Synchronization Context
Colombo and Kolkata are perfectly synchronized in the same timezone, making real-time collaboration effortless throughout the entire workday.
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.
Kolkata Business Pulse
- Culture Intellectual and heritage-focused. Business often involves longer discussions and consensus.
- Lunch Break 1:30 PM - 2:30 PM.
- Pro Tip Best reached between 11:30 AM and 4:00 PM. Avoid the 1:30 PM - 2:30 PM lunch window. Business culture is intellectual and values detailed discussion; avoid overly aggressive "hard-sell" tactics. Note that the city slows down significantly during major festivals like Durga Puja.
Quick Comparison
| Feature | Colombo | Kolkata |
|---|---|---|
| Timezone | Asia/Colombo | Asia/Kolkata |
| Country | Sri Lanka | India |
| Coordinates | 6.93, 79.86 | 22.57, 88.36 |
| Population | 753,000 | 15,333,000 |