diff --git a/src/plugins/ExportXml.py b/src/plugins/ExportXml.py
index f28fd47e0..d313d486d 100644
--- a/src/plugins/ExportXml.py
+++ b/src/plugins/ExportXml.py
@@ -799,6 +799,18 @@ class GrampsDbXmlWriter(UpdateCallback):
         else:
             qual_str = ""
             
+        dualdated = date.get_slash()
+        if dualdated:
+            dualdated_str = ' dualdated="1"'
+        else:
+            dualdated_str = ''
+
+        newyear = date.get_new_year()
+        if newyear != gen.lib.Date.NEWYEAR_JAN1:
+            newyear_str = ' newyear="%d"' % newyear
+        else:
+            newyear_str = ''
+
         mode = date.get_modifier()
         
         if date.is_compound():
@@ -826,8 +838,9 @@ class GrampsDbXmlWriter(UpdateCallback):
             else:
                 mode_str = ""
 
-            self.g.write('%s<dateval val="%s"%s%s%s/>\n'
-                         % (sp,date_str,mode_str,qual_str,calstr))
+            self.g.write('%s<dateval val="%s"%s%s%s%s%s/>\n'
+                         % (sp, date_str, mode_str, qual_str,
+                            calstr, dualdated_str, newyear_str))
         else:
             self.g.write('%s<datestr val="%s"/>\n'
                          %(sp,self.fix(date.get_text())))
diff --git a/src/plugins/ImportXml.py b/src/plugins/ImportXml.py
index ca2ef11c1..ff698903a 100644
--- a/src/plugins/ImportXml.py
+++ b/src/plugins/ImportXml.py
@@ -1817,8 +1817,19 @@ class GrampsParser(UpdateCallback):
                 qual = gen.lib.Date.QUAL_NONE
         else:
             qual = gen.lib.Date.QUAL_NONE
-        
-        date_value.set(qual, mod, cal, (day, month, year, False))
+
+        dualdated = False
+        if 'dualdated' in attrs:
+            val = attrs['dualdated']
+            if val == "1":
+                dualdated = True
+
+        newyear = gen.lib.Date.NEWYEAR_JAN1
+        if 'newyear' in attrs:
+            newyear = int(attrs['newyear'])
+
+        date_value.set(qual, mod, cal, (day, month, year, dualdated), 
+                       newyear=newyear)
 
     def start_datestr(self, attrs):
         if self.source_ref: