The time difference between San Francisco and Hong Kong is 16 hours. When it is 12:00 noon in San Francisco, it is 04:00 in Hong Kong. San Francisco uses the America/Los_Angeles time zone (UTC-8), 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-8 | UTC+8 |
| Abbreviation | PST | HKT |
| DST Active | No | No |
| Country | United States | Hong Kong |
| Region | North America | Asia |
With a 16 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 | 16:00 | Night |
| 01:00 | 17:00 | Night |
| 02:00 | 18:00 | Night |
| 03:00 | 19:00 | Night |
| 04:00 | 20:00 | Night |
| 05:00 | 21:00 | Night |
| 06:00 | 22:00 | |
| 07:00 | 23:00 | |
| 08:00 | 00:00 (+1 day) | |
| 09:00 | 01:00 (+1 day) | |
| 10:00 | 02:00 (+1 day) | |
| 11:00 | 03:00 (+1 day) | |
| 12:00 | 04:00 (+1 day) | |
| 13:00 | 05:00 (+1 day) | |
| 14:00 | 06:00 (+1 day) | |
| 15:00 | 07:00 (+1 day) | |
| 16:00 | 08:00 (+1 day) | |
| 17:00 | 09:00 (+1 day) | |
| 18:00 | 10:00 (+1 day) | |
| 19:00 | 11:00 (+1 day) | |
| 20:00 | 12:00 (+1 day) | |
| 21:00 | 13:00 (+1 day) | |
| 22:00 | 14:00 (+1 day) | Night |
| 23:00 | 15:00 (+1 day) | Night |
Neither San Francisco nor Hong Kong is currently observing daylight saving time. If either city observes DST, the time difference will change by 1 hour when DST begins or ends. Always double-check before scheduling across these time zones during March–April and October–November.
The time difference is 16 hours. Hong Kong is 16 hours ahead of San Francisco.
It can. If either San Francisco or Hong Kong observes daylight saving time, the gap will shift by 1 hour during the transition periods (typically March–April and October–November).
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 16 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.