QTC, in order to enhance its staff and students' environmental protection awareness, joined in the Earth Hour 2012 by inviting them to switch off their room lights or the unnecessary lightening facilities on 31 March from 8:30 p.m. to 9:30 p.m.

One Student Dorm in Earth Hour
To ensure an effective activity, the college's pertinent departments including the Office of the President, departments of Students, Logistics, Teaching and Training, etc conducted an advance propaganda via website notice, mobile text massage, campus broadcast, themed posters and the like before the last Saturday in March.
QTC news reports 95% of the college's 1200 student dorms in the 10 buildings closed the lights inside during the hour.
According to Wikipedia, Earth Hour is a worldwide event organized by the World Wide Fund for Nature (WWF) and held on the last Saturday of March annually, encouraging households and businesses to turn off their non-essential lights for one hour to raise awareness about the need to take action on climate change. The event, conceived by WWF and The Sydney Morning Herald, first took place in 2007, when 2.2 million residents of Sydney participated by turning off all non-essential lights.
See also the Chinese version
Translated by:Pan Zhuangjie; Edited byLi Chengji