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Global ClockTime zone converter & meeting planner
SETTINGS
Clock
Working hours
Start
09
End
18
Theme

AUTO follows the operating system. Working hours drive the green banding on every grid. All four persist on this device only.

Time in San Mateo vs Beijing

San Mateo keeps PST (UTC+8) and Beijing keeps CST (UTC+8) today. Beijing is the same time as San Mateo; the rows below read both clocks live.

The working day, side by side

Hours shaded in both rows are inside working hours in both cities: 09:00–18:00 in Beijing (09:00–18:00 your time).

San Mateo and Beijing hour by hour, with the working-hour overlap shaded
City00:00 in San Mateo01:00 in San Mateo02:00 in San Mateo03:00 in San Mateo04:00 in San Mateo05:00 in San Mateo06:00 in San Mateo07:00 in San Mateo08:00 in San Mateo09:00 in San Mateo10:00 in San Mateo11:00 in San Mateo12:00 in San Mateo13:00 in San Mateo14:00 in San Mateo15:00 in San Mateo16:00 in San Mateo17:00 in San Mateo18:00 in San Mateo19:00 in San Mateo20:00 in San Mateo21:00 in San Mateo22:00 in San Mateo23:00 in San Mateo
San Mateo——000102030405060708091011121314151617181920212223
Beijing——000102030405060708091011121314151617181920212223
  • Working hours
  • Shoulder
  • Night
  • Overlap

Do more with San Mateo and Beijing

Best hours to call

09:00 in San Mateo
Inside working hours on both sides
09:00 in Beijing
10:00 in San Mateo
Inside working hours on both sides
10:00 in Beijing
11:00 in San Mateo
Inside working hours on both sides
11:00 in Beijing
12:00 in San Mateo
Inside working hours on both sides
12:00 in Beijing

Where daylight saving pulls them apart

Neither San Mateo nor Beijing changes its clocks, so the gap above holds all year.

Also useful

Common questions

How many hours ahead is Beijing of San Mateo?

Beijing and San Mateo read the same clock right now.

What is the best time to call between San Mateo and Beijing?

Any hour in 09:00–18:00 San Mateo time is inside working hours in both cities.

Do San Mateo and Beijing change clocks on the same date?

Neither city changes its clocks, so the gap between them never moves.