Report task due times correctly in ChangesHappened

api/src/com/todoroo/andlib/utility/DateUtilities.java

@@ -291,9 +291,12 @@ public class DateUtilities {
         return result;
     }
 
-    public static String timeToIso8601(long time) {
+    public static String timeToIso8601(long time, boolean includeTime) {
         Date date = new Date(time);
-        return new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssZ").format(date); //$NON-NLS-1$
+        String formatString = "yyyy-MM-dd'T'HH:mm:ssZ"; //$NON-NLS-1$
+        if (!includeTime)
+            formatString = "yyyy-MM-dd"; //$NON-NLS-1$
+        return new SimpleDateFormat(formatString).format(date);
     }
 
 }

astrid/plugin-src/com/todoroo/astrid/actfm/sync/messages/ChangesHappened.java

@@ -162,8 +162,12 @@ public class ChangesHappened<TYPE extends RemoteModel, OE extends OutstandingEnt
             if (l != null) {
                 if (l == 0 && property.checkFlag(Property.PROP_FLAG_USER_ID))
                     return ActFmPreferenceService.userId();
-                else if (property.checkFlag(Property.PROP_FLAG_DATE))
+                else if (property.checkFlag(Property.PROP_FLAG_DATE)) {
-                    return DateUtilities.timeToIso8601(l);
+                    boolean includeTime = true;
+                    if (Task.DUE_DATE.equals(property) && !Task.hasDueTime(l))
+                        includeTime = false;
+                    return DateUtilities.timeToIso8601(l, includeTime);
+                }
                 return l;
             } else {
                 return getAsString(data);