Hilton Pattaya GM Philippe Kronberg (centre right) and his staff marked Earth Hour 2013 from 8:30 p.m. to 9:30 p.m. local time on Saturday, March 23, 2013. Together with 3,900 hotels within the Hilton Worldwide portfolio of brands, citizens and organizations around the world, lights were turned off in support of action on global climate change.
