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Global ClockTime zone converter & meeting planner
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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 Heroica Matamoros vs Guangzhou

Heroica Matamoros keeps CDT (UTC−5) and Guangzhou keeps CST (UTC+8) today. Guangzhou is 13 hours ahead of Heroica Matamoros; the rows below read both clocks live.

The working day, side by side

The working days do not meet. there is no working-hour overlap with Guangzhou — the nearest workable window is 17:00–18:00 your time (06:00 there).

Heroica Matamoros and Guangzhou hour by hour, with the working-hour overlap shaded
City00:00 in Heroica Matamoros01:00 in Heroica Matamoros02:00 in Heroica Matamoros03:00 in Heroica Matamoros04:00 in Heroica Matamoros05:00 in Heroica Matamoros06:00 in Heroica Matamoros07:00 in Heroica Matamoros08:00 in Heroica Matamoros09:00 in Heroica Matamoros10:00 in Heroica Matamoros11:00 in Heroica Matamoros12:00 in Heroica Matamoros13:00 in Heroica Matamoros14:00 in Heroica Matamoros15:00 in Heroica Matamoros16:00 in Heroica Matamoros17:00 in Heroica Matamoros18:00 in Heroica Matamoros19:00 in Heroica Matamoros20:00 in Heroica Matamoros21:00 in Heroica Matamoros22:00 in Heroica Matamoros23:00 in Heroica Matamoros
Heroica Matamoros——000102030405060708091011121314151617181920212223
Guangzhou——000102030405060708091011121314151617181920212223
  • Working hours
  • Shoulder
  • Night
  • Overlap

Do more with Heroica Matamoros and Guangzhou

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

Best hours to call

there is no working-hour overlap with Guangzhou — the nearest workable window is 17:00–18:00 your time (06:00 there).

Where daylight saving pulls them apart

Heroica Matamoros 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 Guangzhou of Heroica Matamoros?

Guangzhou is 13 hours ahead of Heroica Matamoros right now. The gap is not fixed: it moves whenever either side changes its clocks.

What is the best time to call between Heroica Matamoros and Guangzhou?

There is no hour inside working hours in both cities. 17:00–18:00 your time (06:00 there) is the cheapest compromise, and one side is taking a shoulder hour.

Do Heroica Matamoros and Guangzhou 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.