San Mateo, CA, USA to Shanghai Time Converter
Quick answers
Selected conversion
8:30 am08:30 PST (UTC-8), Nov 1, 2026 = 12:30 am00:30 CST (UTC+8), Nov 2, 2026
San Mateo is 16 hours behind Shanghai.
How the time difference changes
For most of the year, San Mateo, CA, USA is 15 hours behind Shanghai. From Nov 1, 2026 to Mar 14, 2027, San Mateo, CA, USA is 16 hours behind Shanghai.
For most of the year, working hours of 9:00 am to 6:00 pm in San Mateo, CA, USA correspond to 12:00 am (next day) to 9:00 am (next day) in Shanghai. At other times of the year, working hours of 9:00 am to 6:00 pm in San Mateo, CA, USA correspond to 1:00 am (next day) to 10:00 am (next day) in Shanghai.For most of the year, working hours of 09:00 to 18:00 in San Mateo, CA, USA correspond to 00:00 (next day) to 09:00 (next day) in Shanghai. At other times of the year, working hours of 09:00 to 18:00 in San Mateo, CA, USA correspond to 01:00 (next day) to 10:00 (next day) in Shanghai.
Compare San Mateo time with Shanghai time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
PST (Pacific Standard Time) is 16 hours behind CST (China Standard Time).
8:30 am08:30 in San Mateo, CA, USA is 12:30 am00:30 in Shanghai, China
San Mateo to Shanghai call time
Best time for a conference call or a meeting is between 5pm-6pm17:00-18:00 in San Mateo which corresponds to 9am-10am09:00-10:00 in Shanghai (next day)
8:30 am08:30 PST (Pacific Standard Time) (San Mateo, CA, USA). Offset UTC -8:00 hours
12:30 am00:30 CST (China Standard Time) (Shanghai, China). Offset UTC +8:00 hours
8:30 am08:30 San Mateo, CA, USA / 12:30 am00:30 Shanghai, China
Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.
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San Mateo Time Zone and Facts
Time Zone
PDT – Pacific Daylight Time, UTC-7 (daylight saving time)