From the website:

This Earth-Day-style event, focused on easy-to-use technology, currently involves plans in more than 70 cities in 30 countries. World Usability Day promotes the value of usability engineering, user-centered design, and every user's responsibility to ask for things that work better. The Usability Professionals' Association is doing that by encouraging, organizing, and sponsoring 36 hours of activities at the local level around the globe, all occurring on November 3, 2005.

China – Beijing
Public Establishments Usability Problems Demonstration Start: 3 Nov 2005 - 1:00pm, End: 3 Nov 2005 - 5:00pm, Timezone: Etc/GMT
We will demonstrate usability and accessibility problems of public establishments in the city of Beijing, as well as suggest possible solutions. We intend to raise the public awareness of usability in Beijing through these worldwide events and eventually bring a beneficial effort to the forthcoming Olympic Games in Beijing.

Location: IBM China Research Lab, Zhong Guan Cun Software Court, Shangdi Xinxi Chan Ye Ji Di, Beijing China
Date: 3 Nov 2005 - 1:00pm
Contact: Christina Li 8.6136913451e+012 
Language: Chinese
This event is organised by uiGarden. Sponsor: IBM China

Sponsored by Human Factor International: HFI is a user-centered service group. We usually find many useful materials on their website. It is strongly recommended to subscribe to their newsletter to get up-to-date information.