StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession( conf, null );
PseudoClockScheduler timeService = ( PseudoClockScheduler ) ksession.getSessionClock();
DateFormat df = new SimpleDateFormat( "yyyy-MM-dd'T'HH:mm:ss.SSSZ" );
Date date = df.parse( "2009-01-01T00:00:00.000-0000" );
timeService.advanceTime( date.getTime(), TimeUnit.MILLISECONDS );
final Date date1 = new Date( date.getTime() + (15 * 1000) );
final Date date2 = new Date( date1.getTime() + (60 * 1000) );
final Date date3 = new Date( date2.getTime() + (60 * 1000) );
final Date date4 = new Date( date3.getTime() + (60 * 1000) );