Maya 2012: Lords of Time. The origins of intricate Maya timekeeping systems are an integral part of the Penn Museum of Archaeology and Anthropology’s exploration of a civilization that flourished, with cities already in existence by 500 B.C., in what is now southern Mexico, Guatemala, Honduras, Belize, and El Salvador. At 10 a.m. Saturday, Porfirio Lobo Sosa, president of Honduras, will join Penn Museum director Richard Hodges at a ceremony to open the exhibition.
— Sally Friedman
Exhibition hours: 10 a.m. to 5 p.m. Tuesdays, 10 a.m. to 8 p.m. Wednesdays, 10 a.m. to 5 p.m. Thursday through Sunday, through Jan. 13 at 3260 South St. Timed tickets, which include admission to the rest of the museum, are $22.50, $18.50 for ages 65 and older and military, and $16.50 for students (full-time with ID) and children ages 6 to 17. Information and tickets: 888-695-0888 or www.penn.museum/2012.