diff --git a/hadoop-mapreduce-project/CHANGES.txt b/hadoop-mapreduce-project/CHANGES.txt
index 3c04711f3ed..cc03df767d5 100644
--- a/hadoop-mapreduce-project/CHANGES.txt
+++ b/hadoop-mapreduce-project/CHANGES.txt
@@ -458,6 +458,9 @@ Release 0.23.3 - UNRELEASED
     MAPREDUCE-4048. NullPointerException exception while accessing the
     Application Master UI (Devaraj K via bobby)
 
+    MAPREDUCE-4220. RM apps page starttime/endtime sorts are incorrect
+    (Jonathan Eagles via bobby)
+
 Release 0.23.2 - UNRELEASED
 
   INCOMPATIBLE CHANGES
diff --git a/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/AppsBlock.java b/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/AppsBlock.java
index 7e8fd746d01..12d5554e9cd 100644
--- a/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/AppsBlock.java
+++ b/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/AppsBlock.java
@@ -89,9 +89,11 @@ class AppsBlock extends HtmlBlock {
           td(appInfo.getName()).
           td(appInfo.getQueue()).
           td().
-            br().$title(startTime)._()._(startTime)._().
+            br().$title(String.valueOf(appInfo.getStartTime()))._().
+            _(startTime)._().
           td().
-          br().$title(finishTime)._()._(finishTime)._().
+            br().$title(String.valueOf(appInfo.getFinishTime()))._().
+            _(finishTime)._().
           td(appInfo.getState()).
           td(appInfo.getFinalStatus()).
           td().
diff --git a/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/AppsList.java b/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/AppsList.java
index 5d0060fe438..415f915cd5f 100644
--- a/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/AppsList.java
+++ b/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/AppsList.java
@@ -77,8 +77,10 @@ class AppsList implements ToJSON {
           append(escapeHtml(appInfo.getUser())).append(_SEP).
           append(escapeJavaScript(escapeHtml(appInfo.getName()))).append(_SEP).
           append(escapeHtml(appInfo.getQueue())).append(_SEP);
-      appendSortable(out, startTime).append(startTime).append(_SEP);
-      appendSortable(out, finishTime).append(finishTime).append(_SEP).
+      appendSortable(out, appInfo.getStartTime()).
+          append(startTime).append(_SEP);
+      appendSortable(out, appInfo.getFinishTime()).
+          append(finishTime).append(_SEP).
           append(appInfo.getState()).append(_SEP).
           append(appInfo.getFinalStatus()).append(_SEP);
       appendProgressBar(out, appInfo.getProgress()).append(_SEP);
diff --git a/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/RmView.java b/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/RmView.java
index cdb36f839a7..cd26955c277 100644
--- a/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/RmView.java
+++ b/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/RmView.java
@@ -62,10 +62,10 @@ public class RmView extends TwoColumnLayout {
 
   private String appsTableInit() {
     AppsList list = getInstance(AppsList.class);
-    // id, user, name, queue, starttime, finishtime, state, progress, ui
+    // id, user, name, queue, starttime, finishtime, state, status, progress, ui
     StringBuilder init = tableInit().
         append(", aoColumns:[{sType:'title-numeric'}, null, null, null, ").
-        append("null, null , null, ").
+        append("{sType:'title-numeric'}, {sType:'title-numeric'} , null, ").
         append("null,{sType:'title-numeric', bSearchable:false}, null]");
 
     // Sort by id upon page load