@interface WorldClockPreferences : NSObject - (id)lastModified; - (id)defaultsKeys; - (void)setLastModified:(id)a0; - (void)setDefaultCitiesAdded:(BOOL)a0; - (void)cityDataUpdated; - (id)cities; - (void)setCities:(id)a0; - (BOOL)cityDataNeedsUpdate; - (BOOL)synchronize; - (BOOL)defaultCitiesAdded; - (void)clearOutCityUpdatePref; @end