The time difference between San Francisco and Hong Kong is 15 hours. When it is 12:00 noon in San Francisco, it is 03:00 in Hong Kong. San Francisco uses the America/Los_Angeles time zone (UTC-7), while Hong Kong uses Asia/Hong_Kong (UTC+8).
| Detail | San Francisco | Hong Kong |
|---|---|---|
| Time Zone ID | America/Los_Angeles | Asia/Hong_Kong |
| UTC Offset | UTC-7 | UTC+8 |
| Abbreviation | PDT | HKT |
| DST Active | Yes — currently observing | No |
| Country | United States | Hong Kong |
| Region | North America | Asia |
With a 15 hours gap, there is no standard business-hours overlap between San Francisco and Hong Kong. One party will need to adjust their schedule. Early mornings in Hong Kong or late evenings in San Francisco tend to be the most practical compromise.
Use this table to quickly convert any hour from San Francisco time to Hong Kong time. Rows highlighted in green indicate overlapping business hours in both cities.
| San Francisco | Hong Kong | |
|---|---|---|
| 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 |
San Francisco is currently observing daylight saving time, while Hong Kong is on standard time. When San Francisco switches back to standard time, the difference between these two cities will shift by 1 hour.
The time difference is 15 hours. Hong Kong is 15 hours ahead of San Francisco.
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 San Francisco time to get Hong Kong 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.