1 files changed, 3 insertions, 1 deletions
diff --git a/src/filters.js b/src/filters.js
index 2dde740c..ee0ef076 100644
--- a/src/filters.js
+++ b/src/filters.js
@@ -199,7 +199,9 @@ angularFilter.date = function(date, format) {
 
   if (isNumber(date)) {
     date = new Date(date);
-  } else if (!(date instanceof Date)) {
+  }
+
+  if (!isDate(date)) {
     return date;
   }