Aileen Oelkers is among the first customers at the new Pleasanton Public Library and Information Center. Danielle Rangel, Librarian Assistant, checks out her books. The library officially opened on Monday, March 31. Hours are Monday through Friday 9 a.m. – 6 p.m. and Saturday 9 a.m.to 1 p.m. There is a convenient book drop off in the west side entrance that may be used before, during or after hours. The official grand opening reception of the library and the Pleasanton Civic Center next door will be held on Monday, April 21 at 4 p.m.