Colombo ↔ Istanbul
Best Time to Call
Excellent overlap! The best window to call is between 12:00 and 17:00 (Colombo time).
Sync Colombo and Istanbul easily. Colombo is 2 hours 30 minutes ahead of Istanbul. Excellent overlap! The best window to call is between 12:00 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
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New York City
01:35 EST
Sleeping
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London
06:35 GMT
Sleeping
Synchronization Context
A 2 hours 30 minutes gap allows for a manageable shared window, typically in the morning or late afternoon. It requires some scheduling but supports daily synchronization.
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.
Istanbul Business Pulse
- Culture A bridge between East and West. Business is personal, and hospitality (tea/coffee) is a prerequisite.
- Lunch Break 12:30 PM - 1:30 PM.
- Pro Tip Aim for calls between 10:00 AM and 12:00 PM or 2:00 PM and 4:30 PM. Turkish business culture is highly relational; starting with "Nasılsınız?" (How are you?) and building rapport is essential. Avoid scheduling critical calls late on Friday afternoons.
Quick Comparison
| Feature | Colombo | Istanbul |
|---|---|---|
| Timezone | Asia/Colombo | Europe/Istanbul |
| Country | Sri Lanka | Turkey |
| Coordinates | 6.93, 79.86 | 41.01, 28.98 |
| Population | 753,000 | 15,848,000 |