=== modified file 'dhis-2/dhis-api/src/main/java/org/hisp/dhis/period/SixMonthlyAbstractPeriodType.java'
--- dhis-2/dhis-api/src/main/java/org/hisp/dhis/period/SixMonthlyAbstractPeriodType.java	2014-08-29 10:02:21 +0000
+++ dhis-2/dhis-api/src/main/java/org/hisp/dhis/period/SixMonthlyAbstractPeriodType.java	2014-10-15 14:44:21 +0000
@@ -65,12 +65,12 @@
     public Period createPeriod( DateTimeUnit dateTimeUnit, Calendar calendar )
     {
         int year = calendar.monthsInYear() * dateTimeUnit.getYear();
-        int yearMonth = year + dateTimeUnit.getMonth() - getBaseMonth();
+        int yearMonth = year + dateTimeUnit.getMonth() - getBaseMonth() - 1;
 
         // TODO how should we handle years with odd number of months? (Ethiopian)
         
         int months = (((yearMonth % 12) / 6) * 6) + getBaseMonth();
-
+        
         DateTimeUnit start = new DateTimeUnit( dateTimeUnit );
         start.setDay( 1 );
         start.setMonth( 1 );

=== modified file 'dhis-2/dhis-api/src/test/java/org/hisp/dhis/period/SixMonthlyPeriodTypeTest.java'
--- dhis-2/dhis-api/src/test/java/org/hisp/dhis/period/SixMonthlyPeriodTypeTest.java	2014-10-14 13:30:08 +0000
+++ dhis-2/dhis-api/src/test/java/org/hisp/dhis/period/SixMonthlyPeriodTypeTest.java	2014-10-15 14:44:21 +0000
@@ -55,7 +55,7 @@
     @Test
     public void testCreatePeriod()
     {
-        testDate = new DateTime(  2009, 8, 15, 0, 0 );
+        testDate = new DateTime( 2009, 8, 15, 0, 0 );
         
         startDate = new DateTime( 2009, 7, 1, 0, 0 );
         endDate = new DateTime( 2009, 12, 31, 0, 0 );
@@ -65,13 +65,33 @@
         assertEquals( startDate.toDate(), period.getStartDate() );
         assertEquals( endDate.toDate(), period.getEndDate() );
         
-        testDate = new DateTime(  2009, 4, 15, 0, 0 );
-        
-        startDate = new DateTime(  2009, 1, 1, 0, 0 );
-        endDate = new DateTime(  2009, 6, 30, 0, 0 );
-
-        period = periodType.createPeriod( testDate.toDate() );
-        
+        testDate = new DateTime( 2009, 4, 15, 0, 0 );
+        
+        startDate = new DateTime( 2009, 1, 1, 0, 0 );
+        endDate = new DateTime( 2009, 6, 30, 0, 0 );
+
+        period = periodType.createPeriod( testDate.toDate() );
+        
+        assertEquals( startDate.toDate(), period.getStartDate() );
+        assertEquals( endDate.toDate(), period.getEndDate() );
+
+        testDate = new DateTime( 2014, 6, 1, 0, 0 );
+
+        startDate = new DateTime( 2014, 1, 1, 0, 0 );
+        endDate = new DateTime( 2014, 6, 30, 0, 0 );
+        
+        period = periodType.createPeriod( testDate.toDate() );
+
+        assertEquals( startDate.toDate(), period.getStartDate() );
+        assertEquals( endDate.toDate(), period.getEndDate() );
+        
+        testDate = new DateTime( 2014, 7, 1, 0, 0 );
+
+        startDate = new DateTime( 2014, 7, 1, 0, 0 );
+        endDate = new DateTime( 2014, 12, 31, 0, 0 );
+        
+        period = periodType.createPeriod( testDate.toDate() );
+
         assertEquals( startDate.toDate(), period.getStartDate() );
         assertEquals( endDate.toDate(), period.getEndDate() );
     }