Hong Kong to San Francisco: time difference and best times to meet
San Francisco is 15 hours behind Hong Kong. There is no overlap between a normal working day in each city, so one side has to take the call outside working hours.
Asia/Hong_Kong
America/Los_Angeles
Hour-by-hour overlap
Each row is one hour of the Hong Kong day and the matching hour in San Francisco. Adjust the working hours to match how your team actually works.
| Hong Kong | San Francisco | Suitable? |
|---|---|---|
| 12am | 9am | Working hours in San Francisco only |
| 1am | 10am | Working hours in San Francisco only |
| 2am | 11am | Working hours in San Francisco only |
| 3am | 12pm | Working hours in San Francisco only |
| 4am | 1pm | Working hours in San Francisco only |
| 5am | 2pm | Working hours in San Francisco only |
| 6am | 3pm | Working hours in San Francisco only |
| 7am | 4pm | Working hours in San Francisco only |
| 8am | 5pm | Working hours in San Francisco only |
| 9am | 6pm | Working hours in Hong Kong only |
| 10am | 7pm | Working hours in Hong Kong only |
| 11am | 8pm | Working hours in Hong Kong only |
| 12pm | 9pm | Working hours in Hong Kong only |
| 1pm | 10pm | Working hours in Hong Kong only |
| 2pm | 11pm | Working hours in Hong Kong only |
| 3pm | 12am | Working hours in Hong Kong only |
| 4pm | 1am | Working hours in Hong Kong only |
| 5pm | 2am | Working hours in Hong Kong only |
When the gap changes in the next twelve months
- Sunday, November 1, 2026 — San Francisco goes from 15 hours behind to 16 hours behind Hong Kong.
- Sunday, March 14, 2027 — San Francisco goes from 16 hours behind to 15 hours behind Hong Kong.
Recurring meetings set as a fixed clock time in one city will move by an hour for the other on these dates.
Public holidays to avoid
Dates where one side is off work while the other is not are the most common cause of no-shows on this route.
- Saturday, September 26, 2026 — Day following the Mid-Autumn Festival — Hong Kong is off, San Francisco is working.
- Thursday, October 1, 2026 — National Day — Hong Kong is off, San Francisco is working.
- Monday, October 12, 2026 — Indigenous Peoples' Day — San Francisco is off, Hong Kong is working.
- Monday, October 19, 2026 — Chung Yeung Festival — Hong Kong is off, San Francisco is working.
- Wednesday, November 11, 2026 — Veterans Day — San Francisco is off, Hong Kong is working.
- Thursday, November 26, 2026 — Thanksgiving Day — San Francisco is off, Hong Kong is working.
- Friday, December 25, 2026 — Christmas Day and Christmas Day; both cities are off.
- Saturday, December 26, 2026 — Boxing Day — Hong Kong is off, San Francisco is working.
Hong Kong and San Francisco have no shared working hours, so a recurring live meeting always costs someone their morning or their evening. Rotating the burden, or moving the update to written form, is usually the better answer.
Sending a booking link avoids the arithmetic entirely: each side picks a time in their own zone and both calendars get the correct local time, including after a daylight-saving change. See how LemCall handles cross-timezone bookings.
Frequently asked questions
- What is the time difference between Hong Kong and San Francisco?
- San Francisco is currently 15 hours behind Hong Kong. That changes to 16 hours behind on Sunday, November 1, 2026, when one side shifts for daylight saving.
- When is the best time to schedule a meeting between Hong Kong and San Francisco?
- There is no hour where both cities are inside normal working hours, so one side has to take the call early or late.
- How many hours do Hong Kong and San Francisco overlap?
- Zero, on a standard 9–18 working day in each city.
- Does daylight saving change the Hong Kong–San Francisco gap?
- Yes. Over the next twelve months the difference changes 2 times: Sunday, November 1, 2026 (15 hours behind becomes 16 hours behind); Sunday, March 14, 2027 (16 hours behind becomes 15 hours behind).
- Are there public holidays that affect Hong Kong–San Francisco meetings?
- Yes. The next is Saturday, September 26, 2026 — a public holiday where Hong Kong is, but a normal working day in San Francisco.
Nearby pairs
Other meeting-time pages for Hong Kong
- Hong Kong ↔ Dublin2 hours of overlap
- Hong Kong ↔ New YorkNo working-hours overlap
- Hong Kong ↔ Los AngelesNo working-hours overlap
- Hong Kong ↔ ChicagoNo working-hours overlap
- Hong Kong ↔ DenverNo working-hours overlap
- Hong Kong ↔ TorontoNo working-hours overlap
- Hong Kong ↔ Mexico CityNo working-hours overlap
- Hong Kong ↔ São PauloNo working-hours overlap
Sources
- 1.IANA. Time Zone Database
- 2.Nager.Date. Public holidays API · Retrieved