According to many news sources, Guatemala may observe DST again in 2010. The proposal is to observe DST from April 3 to October 30: http://www.prensalibre.com.gt/pl/2009/noviembre/18/356771.html We will keep this page updated: http://www.timeanddate.com/news/time/guatemala-considers-dst.html Best regards, Steffen Thorsen - timeanddate.com