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Global ClockTime zone converter & meeting planner
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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 Guangzhou vs Hamilton

Guangzhou keeps CST (UTC+8) and Hamilton keeps NZST (UTC+12) today. Hamilton is 4 hours ahead of Guangzhou; 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: 13:00–18:00 in Hamilton (09:00–14:00 your time).

Guangzhou and Hamilton hour by hour, with the working-hour overlap shaded
City00:00 in Guangzhou01:00 in Guangzhou02:00 in Guangzhou03:00 in Guangzhou04:00 in Guangzhou05:00 in Guangzhou06:00 in Guangzhou07:00 in Guangzhou08:00 in Guangzhou09:00 in Guangzhou10:00 in Guangzhou11:00 in Guangzhou12:00 in Guangzhou13:00 in Guangzhou14:00 in Guangzhou15:00 in Guangzhou16:00 in Guangzhou17:00 in Guangzhou18:00 in Guangzhou19:00 in Guangzhou20:00 in Guangzhou21:00 in Guangzhou22:00 in Guangzhou23:00 in Guangzhou
Guangzhou——000102030405060708091011121314151617181920212223
Hamilton——000102030405060708091011121314151617181920212223
  • Working hours
  • Shoulder
  • Night
  • Overlap

Do more with Guangzhou and Hamilton

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

Best hours to call

09:00 in Guangzhou
Inside working hours on both sides
13:00 in Hamilton
10:00 in Guangzhou
Inside working hours on both sides
14:00 in Hamilton
11:00 in Guangzhou
Inside working hours on both sides
15:00 in Hamilton
12:00 in Guangzhou
Inside working hours on both sides
16:00 in Hamilton

Where daylight saving pulls them apart

Hamilton next changes on Sunday 27 September 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 Hamilton of Guangzhou?

Hamilton is 4 hours ahead of Guangzhou right now. The gap is not fixed: it moves whenever either side changes its clocks.

What is the best time to call between Guangzhou and Hamilton?

Any hour in 09:00–14:00 Guangzhou time is inside working hours in both cities.

Do Guangzhou and Hamilton 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.