diff --git a/examples/wms-time.js b/examples/wms-time.js
index 7f65044055..18bce02a25 100644
--- a/examples/wms-time.js
+++ b/examples/wms-time.js
@@ -46,7 +46,7 @@ function updateInfo() {
 
 function setTime() {
   startDate.setMinutes(startDate.getMinutes() + 15);
-  if (startDate > Date.now()) {
+  if (startDate > new Date()) {
     startDate = threeHoursAgo();
   }
   layers[1].getSource().updateParams({'TIME': startDate.toISOString()});