Most of the year, Hong Kong is 15 hours ahead of San Francisco. During Jan 1–Mar 7, Nov 1–Dec 31, Hong Kong is 16 hours ahead of San Francisco.
| San Francisco | Hong Kong Most of the year | Hong Kong Jan 1–Mar 7, Nov 1–Dec 31 |
|---|---|---|
| 12 AM | 3 PM | 4 PM |
| 1 AM | 4 PM | 5 PM |
| 2 AM | 5 PM | 6 PM |
| 3 AM | 6 PM | 7 PM |
| 4 AM | 7 PM | 8 PM |
| 5 AM | 8 PM | 9 PM |
| 6 AM | 9 PM | 10 PM |
| 7 AM | 10 PM | 11 PM |
| 8 AM | 11 PM | 12 AMnext day |
| 9 AM | 12 AMnext day | 1 AMnext day |
| 10 AM | 1 AMnext day | 2 AMnext day |
| 11 AM | 2 AMnext day | 3 AMnext day |
| 12 PM | 3 AMnext day | 4 AMnext day |
| 1 PM | 4 AMnext day | 5 AMnext day |
| 2 PM | 5 AMnext day | 6 AMnext day |
| 3 PM | 6 AMnext day | 7 AMnext day |
| 4 PM | 7 AMnext day | 8 AMnext day |
| 5 PM | 8 AMnext day | 9 AMnext day |
| 6 PM | 9 AMnext day | 10 AMnext day |
| 7 PM | 10 AMnext day | 11 AMnext day |
| 8 PM | 11 AMnext day | 12 PMnext day |
| 9 PM | 12 PMnext day | 1 PMnext day |
| 10 PM | 1 PMnext day | 2 PMnext day |
| 11 PM | 2 PMnext day | 3 PMnext day |
San Francisco observes daylight saving time from Mar 8, 2026 to Nov 1, 2026, when clocks move forward one hour.
Hong Kong does not observe daylight saving time (DST), so its offset stays the same all year.
Most of the year, Hong Kong is 15 hours ahead of San Francisco. During Jan 1–Mar 7, Nov 1–Dec 31, Hong Kong is 16 hours ahead of San Francisco.
San Francisco observes daylight saving time from Mar 8, 2026 to Nov 1, 2026, when clocks move forward one hour. Hong Kong does not observe daylight saving time (DST), so its offset stays the same all year.
Most of the year: The best compromise is at San Francisco 4 PM–10 PM (Hong Kong 7 AM (next day)–1 PM). Jan 1–Mar 7, Nov 1–Dec 31: Both cities are in business hours at San Francisco 5 PM–6 PM (Hong Kong 9 AM (next day)–10 AM).