The time difference between Hong Kong and San Jose is 16 hours. When it is 12:00 noon in Hong Kong, it is 20:00 in San Jose. Hong Kong uses the Asia/Hong_Kong time zone (UTC+8), while San Jose uses America/Los_Angeles (UTC-8).
With a 16 hours gap, there is no standard business-hours overlap between Hong Kong and San Jose. One party will need to adjust their schedule. Early mornings in Hong Kong or late evenings in San Jose tend to be the most practical compromise.
Use this table to quickly convert any hour from Hong Kong time to San Jose time. Rows highlighted in green indicate overlapping business hours in both cities.
| Hong Kong | San Jose | |
|---|---|---|
| 00:00 | 08:00 (-1 day) | Night |
| 01:00 | 09:00 (-1 day) | Night |
| 02:00 | 10:00 (-1 day) | Night |
| 03:00 | 11:00 (-1 day) | Night |
| 04:00 | 12:00 (-1 day) | Night |
| 05:00 | 13:00 (-1 day) | Night |
| 06:00 | 14:00 (-1 day) | |
| 07:00 | 15:00 (-1 day) | |
| 08:00 | 16:00 (-1 day) | |
| 09:00 | 17:00 (-1 day) | |
| 10:00 | 18:00 (-1 day) | |
| 11:00 | 19:00 (-1 day) | |
| 12:00 | 20:00 (-1 day) | |
| 13:00 | 21:00 (-1 day) | |
| 14:00 | 22:00 (-1 day) | |
| 15:00 | 23:00 (-1 day) | |
| 16:00 | 00:00 | |
| 17:00 | 01:00 | |
| 18:00 | 02:00 | |
| 19:00 | 03:00 | |
| 20:00 | 04:00 | |
| 21:00 | 05:00 | |
| 22:00 | 06:00 | Night |
| 23:00 | 07:00 | Night |
Neither Hong Kong nor San Jose 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. San Jose is 16 hours behind Hong Kong.
It can. If either Hong Kong or San Jose 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.
Subtract 16 hours from Hong Kong time to get San Jose 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.