--- a/src/tools/common/template.py	Thu Nov 30 20:58:34 2017 +0100
+++ b/src/tools/common/template.py	Thu Nov 30 20:59:24 2017 +0100
@@ -353,6 +353,13 @@
         return value if not current else u"{}_{}".format(value, current)
 
     def _date_fmt(self, timestamp, fmt='short', date_only=False, auto_limit=None, auto_old_fmt=None):
+        try:
+            return self.date_fmt(timestamp, fmt, date_only, auto_limit, auto_old_fmt)
+        except Exception as e:
+            log.warning(_(u"Can't parse date: {msg}").format(msg=e))
+            return timestamp
+
+    def date_fmt(self, timestamp, fmt='short', date_only=False, auto_limit=None, auto_old_fmt=None):
         """format date according to locale
 
         @param timestamp(basestring, int): unix time