Mar 23, 2011 10:11 CET Swire Hotels including The Opposite House, Beijing; The Upper House and EAST, Hong Kong will participate in Earth Hour 2011 at 8.30 pm on 26 March, 2011 (Saturday). Earth Hour is a global event created by the people for the planet, and the commitment made goes beyond one hour. It symbolises what can happen when the world acts together, and in celebration of the planet's future.