Hong Kong to San Francisco Time Difference
San Francisco is 15 hours behind Hong Kong
24-Hour Comparison
Business hours Extended Off hours
Hong Kong
10p
11p
12a
01a
02a
03a
04a
05a
06a
07a
08a
09a
10a
11a
12p
01p
02p
03p
04p
05p
06p
07p
08p
09p
San Francisco
07a
08a
09a
10a
11a
12p
01p
02p
03p
04p
05p
06p
07p
08p
09p
10p
11p
12a
01a
02a
03a
04a
05a
06a
Each column is the same moment in both cities, starting from right now and rolling forward 24 hours — daylight saving is already accounted for.
Best Time to Call
On a typical weekday (Monday–Friday).
Hong Kong and San Francisco have little to no overlap in typical business hours (9 AM–5 PM) — an early morning or evening call works best for one side.
Frequently Asked Questions
- What is the time difference between Hong Kong and San Francisco?
- San Francisco is 15 hours behind Hong Kong. Hong Kong is currently UTC+8 and San Francisco is UTC-7.
- Is San Francisco ahead of or behind Hong Kong?
- San Francisco is behind Hong Kong.
- What is the best time to call San Francisco from Hong Kong?
- Hong Kong and San Francisco have little to no overlap in typical business hours (9 AM–5 PM), even on a weekday — an early morning or evening call works best for one side.
- Does the time difference between Hong Kong and San Francisco change during the year?
- Yes. Hong Kong and San Francisco don't switch to daylight saving time on the same schedule, so the offset shifts by up to an hour for part of the year.