Seoul ↔ Shanghai
Best Time to Call
Excellent overlap! The best window to call is between 10:00 and 17:00 (Seoul time).
Sync Seoul and Shanghai easily. Seoul is 1 hour ahead of Shanghai. Excellent overlap! The best window to call is between 10:00 and 17:00 (Seoul 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
5.3/10
-12h Current Time +12h
🌍
Tokyo
17:04 GMT+9
Personal
Outside Business Hours🌍
New York City
03:04 EST
Sleeping
🌍
London
08:04 GMT
Personal
Outside Business HoursSynchronization Context
With only a 1 hour difference, these cities share a near-total workday overlap. Coordination is seamless, with most business hours aligning perfectly.
Seoul Business Pulse
- Culture Extremely hardworking and hierarchical. "Pali-pali" (hurry-hurry) culture drives rapid growth.
- Lunch Break 12:00 PM - 1:00 PM.
- Pro Tip The ideal window is 9:30 AM to 11:30 AM. South Koreans value speed ("Pali-pali") and expect rapid responses. Avoid the 12-1 PM lunch hour strictly. Ensure you follow hierarchical protocols if senior leaders are present, and never arrive (digitally or in-person) late for a call.
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 | Seoul | Shanghai |
|---|---|---|
| Timezone | Asia/Seoul | Asia/Shanghai |
| Country | South Korea | China |
| Coordinates | 37.57, 126.98 | 31.23, 121.47 |
| Population | 9,988,000 | 29,210,000 |