Hangzhou to San Francisco Time Difference

San Francisco is 15 hours behind Hangzhou. Standard 9 AM–5 PM business hours in Hangzhou and San Francisco do not overlap, so a live call needs one side outside normal hours. Clocks change on November 1, 2026, which briefly shifts the gap between Hangzhou and San Francisco — the converter on this page always reflects the correct offset for the date you pick.

• When it's 9:00 AM in Hangzhou, it's 6:00 PM the previous day in San Francisco.
• When it's 9:00 AM in San Francisco, it's 12:00 AM the next day in Hangzhou.

San Francisco is currently 15 hours behind Hangzhou.

Standard 9 AM – 5 PM hours in Hangzhou and San Francisco do not overlap. The least-bad options are an early start in one city or a late evening call in the other — for example a 7–8 AM meeting in Hangzhou, or a 6–8 PM meeting in San Francisco.

On November 1, 2026, San Francisco shifts for daylight saving. After that, San Francisco will be 16 hours behind Hangzhou (currently 15 hours behind Hangzhou). The converter and the tables above always reflect the correct offset for the date you pick.

• Hangzhou does not observe daylight saving time.
• San Francisco is currently observing daylight saving time.

Frequently asked questions

Is San Francisco ahead of or behind Hangzhou?

San Francisco is 15 hours behind Hangzhou.

How many hours behind Hangzhou is San Francisco?

San Francisco is 15 hours behind Hangzhou.

What time is 9 AM in Hangzhou in San Francisco?

9:00 AM in Hangzhou is 6:00 PM the previous day in San Francisco.

What time is noon in Hangzhou in San Francisco?

12:00 PM in Hangzhou is 9:00 PM the previous day in San Francisco.

What time is 5 PM in Hangzhou in San Francisco?

5:00 PM in Hangzhou is 2:00 AM in San Francisco. Useful for end-of-day handoffs between the two offices.

What time is 3 PM in Hangzhou in San Francisco?

3:00 PM in Hangzhou is 12:00 AM in San Francisco.

Is Hangzhou currently observing daylight saving time?

Hangzhou does not observe daylight saving time — its UTC offset stays the same all year.

Is San Francisco currently observing daylight saving time?

San Francisco is currently observing daylight saving time (summer time).

Do Hangzhou and San Francisco observe daylight saving?

On November 1, 2026, San Francisco shifts for daylight saving. After that, San Francisco will be 16 hours behind Hangzhou (currently 15 hours behind Hangzhou). The converter and the tables above always reflect the correct offset for the date you pick.

When is the best time to call San Francisco from Hangzhou?

Hangzhou and San Francisco business hours don't overlap. The closest options are early mornings in Hangzhou or late evenings, when one side stretches outside 9–5.

When is the best time to call Hangzhou from San Francisco?

San Francisco and Hangzhou business hours don't overlap. The closest options are early mornings in San Francisco or late evenings, when one side stretches outside 9–5.

Hangzhou (CST) to San Francisco (PDT) — how do I convert quickly?

Subtract 15 hours from Hangzhou local time to get San Francisco local time. Or use the converter at the top of this page — it stays accurate through daylight-saving changes automatically.

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