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Global ClockTime zone converter & meeting planner
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Working hours
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09
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18
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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 Mexico City

San Mateo keeps PDT (UTC−7) and Mexico City keeps CST (UTC−6) today. Mexico City is 1 hour ahead of 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: 10:00–18:00 in Mexico City (09:00–17:00 your time).

San Mateo and Mexico City 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
Mexico City——000102030405060708091011121314151617181920212223
  • Working hours
  • Shoulder
  • Night
  • Overlap

Do more with San Mateo and Mexico City

Open in the PlannerAdd more cities, find a meeting time that works for everyone, then share it as a link.Open in Watch ViewKeep San Mateo, Mexico City and other cities on screen as live clocks, under an animated sky and sun.

Best hours to call

09:00 in San Mateo
Inside working hours on both sides
10:00 in Mexico City
10:00 in San Mateo
Inside working hours on both sides
11:00 in Mexico City
11:00 in San Mateo
Inside working hours on both sides
12:00 in Mexico City
12:00 in San Mateo
Inside working hours on both sides
13:00 in Mexico City

Where daylight saving pulls them apart

San Mateo next changes on Sunday 1 November 2026. Between those two dates the gap between the cities is an hour different from the one shown above — which is exactly when a recurring meeting drifts. Every date we track is on the daylight saving page.

Also useful

Common questions

How many hours ahead is Mexico City of San Mateo?

Mexico City is 1 hour ahead of San Mateo right now. The gap is not fixed: it moves whenever either side changes its clocks.

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

Any hour in 09:00–17:00 San Mateo time is inside working hours in both cities.

Do San Mateo and Mexico City change clocks on the same date?

Only one of them does, so the gap between them changes twice a year even though neither city moved relative to the sun.