Colombo ↔ Seattle
Best Time to Call
Decent overlap available between 8:00 and 9:00 (Colombo time).
Sync Colombo and Seattle easily. Colombo is 13 hours 30 minutes ahead of Seattle. Decent overlap available between 8:00 and 9:00 (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
15:32 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.
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.
Seattle Business Pulse
- Culture Tech-heavy, casual, and values innovation and nature.
- Lunch Break 12:00 PM - 1:00 PM.
- Pro Tip The "sweet spot" is 10:00 AM to 4:00 PM. Expect a casual professional environment (lots of tech-casual wear). Networking often happens over coffee; many locals are flexible with virtual meeting times but value their time in nature, so avoid late evening or weekend intrusions.
Quick Comparison
| Feature | Colombo | Seattle |
|---|---|---|
| Timezone | Asia/Colombo | America/Los_Angeles |
| Country | Sri Lanka | USA |
| Coordinates | 6.93, 79.86 | 47.61, -122.33 |
| Population | 753,000 | 3,511,000 |