Offset
The time difference between Guangzhou and San Francisco is 15 hours.
Guangzhou (CST) is ahead of San Francisco (PDT).
CST: UTC+8
PDT: UTC-7
San Francisco is currently observing daylight saving time; Guangzhou is not.
When to schedule
Standard business hours (9 AM–5 PM, Mon–Fri) in Guangzhou and San Francisco don't overlap on the same weekday. San Francisco is 15 hours behind Guangzhou.
Realistic options: hand off asynchronously, or stretch one side by an hour to catch the other team at the start or end of their day.
This window may shift by an hour during daylight saving time.
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
China
- New Year's DayThu, Jan 1
- Chinese New Year (Spring Festival)Tue, Feb 17
- Labour DayFri, May 1
- Dragon Boat FestivalFri, Jun 19
- Mid-Autumn FestivalFri, Sep 25
- National DayThu, Oct 1
United States
- New Year's DayThu, Jan 1
- Martin Luther King, Jr. DayMon, Jan 19
- Presidents DayMon, Feb 16
- Memorial DayMon, May 25
- Juneteenth National Independence DayFri, Jun 19
- Independence DayFri, Jul 3
- Labour DayMon, Sep 7
- Columbus DayMon, Oct 12
- Veterans DayWed, Nov 11
- Thanksgiving DayThu, Nov 26
- Christmas DayFri, Dec 25
About these zones
Guangzhou uses China Standard Time (CST). To call China, dial +86.
San Francisco uses Pacific Time (PST, or PDT). To call United States, dial +1.
San Francisco is approximately 6,900 miles northeast of Guangzhou.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Guangzhou | San Francisco | Day |
|---|---|---|
| 12:00 am | 9:00 am | -1 day |
| 1:00 am | 10:00 am | -1 day |
| 2:00 am | 11:00 am | -1 day |
| 3:00 am | 12:00 pm | -1 day |
| 4:00 am | 1:00 pm | -1 day |
| 5:00 am | 2:00 pm | -1 day |
| 6:00 am | 3:00 pm | -1 day |
| 7:00 am | 4:00 pm | -1 day |
| 8:00 am | 5:00 pm | -1 day |
| 9:00 am | 6:00 pm | -1 day |
| 10:00 am | 7:00 pm | -1 day |
| 11:00 am | 8:00 pm | -1 day |
| 12:00 pm | 9:00 pm | -1 day |
| 1:00 pm | 10:00 pm | -1 day |
| 2:00 pm | 11:00 pm | -1 day |
| 3:00 pm | 12:00 am | Same day |
| 4:00 pm | 1:00 am | Same day |
| 5:00 pm | 2:00 am | Same day |
| 6:00 pm | 3:00 am | Same day |
| 7:00 pm | 4:00 am | Same day |
| 8:00 pm | 5:00 am | Same day |
| 9:00 pm | 6:00 am | Same day |
| 10:00 pm | 7:00 am | Same day |
| 11:00 pm | 8:00 am | Same day |
Daylight saving time
San Francisco observes daylight saving time; Guangzhou does not. The offset between the two zones changes when San Francisco transitions: on Sunday, November 1, 2026, clocks fall back from PDT to PST.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 5:42 AM
- Sunset
- 7:12 PM
- Day length
- 13h 31m
- Sunrise
- 5:49 AM
- Sunset
- 8:30 PM
- Day length
- 14h 42m
Daylight overlap: 5h 49m — 5:42 AM–11:30 AM in Guangzhou (2:42 PM–8:30 PM in San Francisco). Both locations are in daylight during this window.
Cities in these zones
Other cities in China Standard Time
Other cities in Pacific Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in China Standard Time
- PVG
- SHA
- PEK
- PKX
- SZX
- CAN
- FUO
- CTU
- TFU
- TSN
Airports in Pacific Time
- BUR
- HHR
- LAX
- LGB
- SNA
- CLD
- SAN
- TIJ
- OAK
- SFO
Related conversions
Common conversions
- What is 9:00 am Guangzhou in San Francisco?
- 9:00 am Guangzhou is 6:00 pm San Francisco, the previous day.
- What is 12:00 pm Guangzhou in San Francisco?
- 12:00 pm Guangzhou is 9:00 pm San Francisco, the previous day.
- What is 12:30 pm Guangzhou in San Francisco?
- 12:30 pm Guangzhou is 9:30 pm San Francisco, the previous day.
- What is 2:00 pm Guangzhou in San Francisco?
- 2:00 pm Guangzhou is 11:00 pm San Francisco, the previous day.
- What is 5:00 pm Guangzhou in San Francisco?
- 5:00 pm Guangzhou is 2:00 am San Francisco.
- What is 11:30 pm Guangzhou in San Francisco?
- 11:30 pm Guangzhou is 8:30 am San Francisco.