Kolkata ↔ Shanghai
Best Time to Call
Excellent overlap! The best window to call is between 9:00 and 15:00 (Kolkata time).
Sync Kolkata and Shanghai easily. Kolkata is 2 hours 30 minutes behind Shanghai. Excellent overlap! The best window to call is between 9:00 and 15:00 (Kolkata 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
20:03 GMT+9
Personal
Outside Business Hours🌍
New York City
06:03 EST
Sleeping
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London
11:03 GMT
Working
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.
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.
Shanghai Business Pulse
- Culture Highly competitive and fast-paced. Business is often conducted with a mix of modern efficiency and traditional "Guanxi" (relationships).
- Lunch Break 12:00 PM - 1:00 PM (Nap time is common).
- Pro Tip Respect the 12-1 PM lunch and rest window; lights are often dimmed in offices for naps. The best time to call is between 2:00 PM and 4:30 PM. Avoid calling during major public holidays like Golden Week or Lunar New Year, as business comes to a complete halt.
Quick Comparison
| Feature | Kolkata | Shanghai |
|---|---|---|
| Timezone | Asia/Kolkata | Asia/Shanghai |
| Country | India | China |
| Coordinates | 22.57, 88.36 | 31.23, 121.47 |
| Population | 15,333,000 | 29,210,000 |