Hi I have a problem with calendars in guvnor. I want to use calendars feature in my rules and I've defined such rule in Guvnor: rule "CalendarTest" calendars "AUD Home Loans" no-loop true dialect "mvel" when then System.out.println("CALENDAR IS WORKING!!!"); end When in my application I consume ChangeSet.xml in which i specify recources in binary format as PKG type, it always fires this rule even if there is no calendar in session. However, if i defined sources in changeset in DRL format, everything is ok. Can you help me, why is it so? Thanks, Anton