Time in San Mateo vs Shanghai
San Mateo keeps PST (UTC+8) and Shanghai keeps CST (UTC+8) today. Shanghai 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 Shanghai (09:00–18:00 your time).
| City | 00:00 in San Mateo | 01:00 in San Mateo | 02:00 in San Mateo | 03:00 in San Mateo | 04:00 in San Mateo | 05:00 in San Mateo | 06:00 in San Mateo | 07:00 in San Mateo | 08:00 in San Mateo | 09:00 in San Mateo | 10:00 in San Mateo | 11:00 in San Mateo | 12:00 in San Mateo | 13:00 in San Mateo | 14:00 in San Mateo | 15:00 in San Mateo | 16:00 in San Mateo | 17:00 in San Mateo | 18:00 in San Mateo | 19:00 in San Mateo | 20:00 in San Mateo | 21:00 in San Mateo | 22:00 in San Mateo | 23:00 in San Mateo |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| San Mateo—— | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| Shanghai—— | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
- Working hours
- Shoulder
- Night
- Overlap
Do more with San Mateo and Shanghai
Best hours to call
09:00 in San Mateo
Inside working hours on both sides
09:00 in Shanghai
10:00 in San Mateo
Inside working hours on both sides
10:00 in Shanghai
11:00 in San Mateo
Inside working hours on both sides
11:00 in Shanghai
12:00 in San Mateo
Inside working hours on both sides
12:00 in Shanghai
Where daylight saving pulls them apart
Neither San Mateo nor Shanghai changes its clocks, so the gap above holds all year.
Also useful
Common questions
How many hours ahead is Shanghai of San Mateo?
Shanghai and San Mateo read the same clock right now.
What is the best time to call between San Mateo and Shanghai?
Any hour in 09:00–18:00 San Mateo time is inside working hours in both cities.
Do San Mateo and Shanghai change clocks on the same date?
Neither city changes its clocks, so the gap between them never moves.