diff --git a/config/alfresco/core-services-context.xml b/config/alfresco/core-services-context.xml
index dfedf88af4..292989fa0b 100644
--- a/config/alfresco/core-services-context.xml
+++ b/config/alfresco/core-services-context.xml
@@ -559,9 +559,13 @@
 		<property name="threadPoolExecutor">
 			<ref bean="indexThreadPoolExecutor"></ref>
 		</property>
-      <property name="bulkLoader">
+        <property name="bulkLoader">
 			<ref bean="hibernateL1CacheBulkLoader"></ref>
 		</property>
+		<!-- over-ride to false for pre 3.0 behaviour -->
+		<property name="postSortDateTime">
+			<value>true</value>
+		</property>
     </bean>
 	
 	
@@ -690,6 +694,10 @@
         <property name="threadPoolExecutor">
 			<ref bean="indexThreadPoolExecutor"></ref>
 		</property>
+		<!-- over-ride to false for pre 3.0 behaviour -->
+		<property name="postSortDateTime">
+			<value>true</value>
+		</property>
     </bean>
 
 
diff --git a/source/java/org/alfresco/repo/search/impl/lucene/ADMLuceneSearcherImpl.java b/source/java/org/alfresco/repo/search/impl/lucene/ADMLuceneSearcherImpl.java
index 2e800b3283..17a5c2141a 100644
--- a/source/java/org/alfresco/repo/search/impl/lucene/ADMLuceneSearcherImpl.java
+++ b/source/java/org/alfresco/repo/search/impl/lucene/ADMLuceneSearcherImpl.java
@@ -26,9 +26,7 @@ package org.alfresco.repo.search.impl.lucene;
 
 import java.io.IOException;
 import java.io.Serializable;
-import java.io.StringReader;
 import java.util.ArrayList;
-import java.util.Collection;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.HashSet;
@@ -48,8 +46,6 @@ import org.alfresco.repo.search.SearcherException;
 import org.alfresco.repo.search.impl.NodeSearcher;
 import org.alfresco.repo.search.impl.lucene.QueryParser.Operator;
 import org.alfresco.repo.search.impl.lucene.analysis.DateTimeAnalyser;
-import org.alfresco.repo.search.impl.lucene.analysis.MLTokenDuplicator;
-import org.alfresco.repo.search.impl.lucene.analysis.VerbatimAnalyser;
 import org.alfresco.repo.search.results.SortedResultSet;
 import org.alfresco.repo.tenant.TenantService;
 import org.alfresco.service.cmr.dictionary.DataTypeDefinition;
@@ -391,7 +387,7 @@ public class ADMLuceneSearcherImpl extends AbstractLuceneBase implements LuceneS
 
                 Path[] paths = searchParameters.getAttributePaths().toArray(new Path[0]);
                 ResultSet rs = new LuceneResultSet(hits, searcher, nodeService, tenantService, paths, searchParameters, getLuceneConfig());
-                if (requiresPostSort)
+                if(getLuceneConfig().getPostSortDateTime() && requiresPostSort)
                 {
                     ResultSet sorted = new SortedResultSet(rs, nodeService, searchParameters, namespacePrefixResolver);
                     return sorted;
diff --git a/source/java/org/alfresco/repo/search/impl/lucene/AbstractLuceneIndexerAndSearcherFactory.java b/source/java/org/alfresco/repo/search/impl/lucene/AbstractLuceneIndexerAndSearcherFactory.java
index 237a4eb270..1185d01dec 100644
--- a/source/java/org/alfresco/repo/search/impl/lucene/AbstractLuceneIndexerAndSearcherFactory.java
+++ b/source/java/org/alfresco/repo/search/impl/lucene/AbstractLuceneIndexerAndSearcherFactory.java
@@ -185,6 +185,8 @@ public abstract class AbstractLuceneIndexerAndSearcherFactory implements LuceneI
 
     private boolean cacheEnabled = true;
 
+    private boolean postSortDateTime;
+
     private ConfigurableApplicationContext applicationContext;
 
     /**
@@ -1716,6 +1718,16 @@ public abstract class AbstractLuceneIndexerAndSearcherFactory implements LuceneI
     {
         this.cacheEnabled = cacheEnabled;
     }
+    
+    public boolean getPostSortDateTime()
+    {
+       return postSortDateTime;
+    }
+    
+    public void setPostSortDateTime(boolean postSortDateTime)
+    {
+       this.postSortDateTime = postSortDateTime;
+    }
 
     protected abstract List<StoreRef> getAllStores();
 
diff --git a/source/java/org/alfresco/repo/search/impl/lucene/LuceneConfig.java b/source/java/org/alfresco/repo/search/impl/lucene/LuceneConfig.java
index 460a2377eb..fe896b4a22 100644
--- a/source/java/org/alfresco/repo/search/impl/lucene/LuceneConfig.java
+++ b/source/java/org/alfresco/repo/search/impl/lucene/LuceneConfig.java
@@ -209,7 +209,20 @@ public interface LuceneConfig
      * @return
      */
     public int getMaxLinkAspectCacheSize();
-  
+
+    /**
+     * If we are using the DateAnalyser then lucene sort is only to the date, as that is all that is in the index.
+     * If this is true, a query that defines a sort on a datetime field will do a post sort in Java.
+     * 
+     * For the DateTimeAnalyser no post sort is done.
+     * (The default config does do a post sort)
+     * 
+     * In the future, this behaviour may also be set per query on the SearchParameters object.
+     * 
+     * @return
+     */
+    public boolean getPostSortDateTime();
+
     /**
      * Gets the application context through which events can be broadcast
      * @return