diff --git a/src/common/datetime.cpp b/src/common/datetime.cpp
index 56324c0d3d..b46997bbe6 100644
--- a/src/common/datetime.cpp
+++ b/src/common/datetime.cpp
@@ -3185,6 +3185,14 @@ const wxChar *wxDateTime::ParseFormat(const wxChar *date,
 
     Set(tm);
 
+    // finally check that the week day is consistent -- if we had it
+    if ( haveWDay && GetWeekDay() != wday )
+    {
+        wxLogDebug(_T("inconsistsnet week day in wxDateTime::ParseFormat()"));
+
+        return NULL;
+    }
+
     return input;
 }