The time difference between Seattle and Shanghai is 15 hours. When it is 12:00 noon in Seattle, it is 03:00 in Shanghai. Seattle uses the America/Los_Angeles time zone (UTC-7), while Shanghai uses Asia/Shanghai (UTC+8).
With a 15 hours gap, there is no standard business-hours overlap between Seattle and Shanghai. One party will need to adjust their schedule. Early mornings in Shanghai or late evenings in Seattle tend to be the most practical compromise.
Use this table to quickly convert any hour from Seattle time to Shanghai time. Rows highlighted in green indicate overlapping business hours in both cities.
| Seattle | Shanghai | |
|---|---|---|
| 00:00 | 15:00 | Night |
| 01:00 | 16:00 | Night |
| 02:00 | 17:00 | Night |
| 03:00 | 18:00 | Night |
| 04:00 | 19:00 | Night |
| 05:00 | 20:00 | Night |
| 06:00 | 21:00 | |
| 07:00 | 22:00 | |
| 08:00 | 23:00 | |
| 09:00 | 00:00 (+1 day) | |
| 10:00 | 01:00 (+1 day) | |
| 11:00 | 02:00 (+1 day) | |
| 12:00 | 03:00 (+1 day) | |
| 13:00 | 04:00 (+1 day) | |
| 14:00 | 05:00 (+1 day) | |
| 15:00 | 06:00 (+1 day) | |
| 16:00 | 07:00 (+1 day) | |
| 17:00 | 08:00 (+1 day) | |
| 18:00 | 09:00 (+1 day) | |
| 19:00 | 10:00 (+1 day) | |
| 20:00 | 11:00 (+1 day) | |
| 21:00 | 12:00 (+1 day) | |
| 22:00 | 13:00 (+1 day) | Night |
| 23:00 | 14:00 (+1 day) | Night |
Seattle is currently observing daylight saving time, while Shanghai is on standard time. When Seattle switches back to standard time, the difference between these two cities will shift by 1 hour.
The time difference is 15 hours. Shanghai is 15 hours ahead of Seattle.
Yes. One of these cities observes DST while the other does not, so the difference shifts by 1 hour when DST begins or ends.
There is no ideal window during standard business hours. Consider scheduling at the edges — early morning for the city that is ahead and late afternoon for the city that is behind.
Add 15 hours to Seattle time to get Shanghai time. Use the hour-by-hour table above for a quick reference.
For sunrise and sunset data, visit TheSunsetTimes.com. For detailed DST schedules, see DaylightSavingTime.info.