I read that in the documentation of jbpm-jpdl-3.2.1 JBoss jBPM jPDL 3.2 jBPM jPDL User Guide 15.2. Calendar configuration The file org/jbpm/calendar/jbpm.business.calendar.properties specifies what business hours are. The configuration file can be customized and a modified copy can be placed in the root of the classpath. And i stored the file with the same name like in the JAR archive jbpm.business.calendar.properties in the /webapp//classes/jbpm.business.calendar.properties and i also tried /webapp//libs/jbpm.business.calendar.properties in the last folder are also the libs files of the jbpm: jbpm-jpdl.jar jbpm-identity.jar View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4073156#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...