Shanghai to Seattle Time Difference
Seattle is 15 hours behind Shanghai. When it is noon in Shanghai, it is 21:00 in Seattle.
Shanghai (UTC+8) → Los Angeles (UTC-7)
🕐 Interactive Time Explorer
When it's 10:00 in Shanghai, it's 19:00 in Seattle
Drag the slider to see corresponding times in both cities
🤝 Best Meeting Times
Shanghai & Seattle◐ Extended Hours (5 hours)
✈️ Travel Information
Distance
9,187 km
Est. Flight Time
~11.8h
Time Difference
-15h
Work Hours Overlap
0h
None
🔴 Office Closed
No overlap available
No overlap
⏰ Quick Conversion
06:00
Shanghai
15:00
Seattle (-1)
09:00
Shanghai
18:00
Seattle (-1)
12:00
Shanghai
21:00
Seattle (-1)
15:00
Shanghai
00:00
Seattle
18:00
Shanghai
03:00
Seattle
21:00
Shanghai
06:00
Seattle
00:00
Shanghai
09:00
Seattle (-1)
03:00
Shanghai
12:00
Seattle (-1)
Frequently Asked Questions
How many hours is Shanghai ahead of Seattle?
Seattle is 15 hours behind Shanghai. When it is 12:00 noon in Shanghai, it is 21:00 in Seattle. Shanghai operates on Asia/Shanghai (UTC+8), while Seattle uses America/Los Angeles (UTC-7).
What is the best time to call Seattle from Shanghai?
Standard business hours (9 AM–5 PM) do not overlap between Shanghai and Seattle due to the 15 hours difference. Consider early morning or late evening calls, or use async communication.
Does the Shanghai to Seattle time difference change throughout the year?
The time difference can shift by up to one hour when either city observes Daylight Saving Time (DST). DST transition dates differ between countries — typically March/April in the Northern Hemisphere and October in the Southern Hemisphere. Always verify the live difference above when scheduling important meetings near DST changeover dates.
Flying between Shanghai and Seattle
The distance between Shanghai and Seattle is approximately 9,187 km. A direct flight typically takes around 11.8 hours. Your arrival clock will show local Seattle time — use our Flight Time Calculator to predict exact arrival times.