The Zhongshan People's Government stated through an announcement that a city-wide air defense warning trial will be conducted from 10:40 am to 11:00 am on Saturday, September 18, also the National Defense Education Day.

The details are as follows:

Early warning test from 10:40 to 10:43: sound for 36 seconds, pause for 24 seconds, repeating 3 times as a cycle (totaling 180 seconds);

Air defense alarm from 10:50 to 10:53: sound for 6 seconds, pause for 6 seconds, repeating 15 times as a cycle (totaling 180 seconds);

All clear from 10:57 to 11:00: sound for 180 seconds.

During the trial, production, study, daily life and other activities in Zhongshan will go on as usual.