Time difference between Shanghai and San Francisco
San Francisco is 15 hours behind Shanghai.
Local time in both cities
Shanghai · China
23:43
ChinaSan Francisco · United States
08:43
United StatesSan Francisco is 15 hours behind Shanghai.
same day
Time zones
| Shanghai | Asia/Shanghai · UTC+08:00 |
|---|---|
| San Francisco | America/Los_Angeles · UTC-07:00 |
Shanghai does not observe daylight saving and stays on UTC+08:00 all year.
San Francisco is currently on daylight saving time (UTC-07:00). Next change: 2026-11-01 01:00.
Hour-by-hour conversion
Calculated for 2026-09-21 local time in Shanghai. The two places start and end daylight saving on different dates, so another day can give a different result.
| Shanghai (source) | San Francisco (target) |
|---|---|
| 00:00 | 09:00 prev day |
| 01:00 | 10:00 prev day |
| 02:00 | 11:00 prev day |
| 03:00 | 12:00 prev day |
| 04:00 | 13:00 prev day |
| 05:00 | 14:00 prev day |
| 06:00 | 15:00 prev day |
| 07:00 | 16:00 prev day |
| 08:00 | 17:00 prev day |
| 09:00 | 18:00 prev day |
| 10:00 | 19:00 prev day |
| 11:00 | 20:00 prev day |
| 12:00 | 21:00 prev day |
| 13:00 | 22:00 prev day |
| 14:00 | 23:00 prev day |
| 15:00 | 00:00 |
| 16:00 | 01:00 |
| 17:00 | 02:00 |
| 18:00 | 03:00 |
| 19:00 | 04:00 |
| 20:00 | 05:00 |
| 21:00 | 06:00 |
| 22:00 | 07:00 |
| 23:00 | 08:00 |
Other common differences from Shanghai
FAQ
- How many hours apart are Shanghai and San Francisco right now?
- The answer at the top of the page is calculated for the current moment and states which side is ahead. The gap changes during the year, because the two places usually start and end daylight saving on different dates.
- Is this difference the same all year?
- Not necessarily. Shanghai uses Asia/Shanghai and San Francisco uses America/Los_Angeles; if either observes daylight saving, the gap shifts during the year. Use “Convert a specific date and time” below to calculate it for a given day.
- How do I read the conversion table?
- The left column lists each whole hour in Shanghai; the right column is the local time in San Francisco at that same instant, with date rollovers marked. On the day clocks jump forward, some hours do not exist locally — the table says so instead of showing a plausible but wrong value.