[FIXED JENKINS-12356] month should not be 0.

changelog.html

@@ -59,6 +59,9 @@ Upcoming changes</a>
     <tt>install-plugin</tt> CLI command fails to put a file in the right location when installing from URL.
   <li class=bug>
     Fixed a bug where long post-production processing in matrix jobs can cause incorrect abortion.
+  <li class=bug>
+    month should not be 0.
+    (<a href="https://issues.jenkins-ci.org/browse/JENKINS-12356">issue 12356</a>)
 </ul>
 </div><!--=TRUNK-END=-->
 

core/src/main/java/hudson/scheduler/BaseParser.java

@@ -36,7 +36,7 @@ import antlr.TokenStreamException;
  * @author Kohsuke Kawaguchi
  */
 abstract class BaseParser extends LLkParser {
-    private static final int[] LOWER_BOUNDS = new int[] {0,0,1,0,0};
+    private static final int[] LOWER_BOUNDS = new int[] {0,0,1,1,0};
     private static final int[] UPPER_BOUNDS = new int[] {59,23,31,12,7};
 
     /**