Even if you have the same TimeZone in your different running instances of the JVM, generally the TimeZone is set by default to a specifc TimeZone, and not to the operating system TimeZone set. If you save and retrieve date/time values from a database, the TimeZone in database could be (and often will be) different, so you obtain unexpected values loading and saving. Best regards. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3971422#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...