diff --git a/examples/feature-animation.js b/examples/feature-animation.js
index 7d469cc1e0..a9aa58ed69 100644
--- a/examples/feature-animation.js
+++ b/examples/feature-animation.js
@@ -43,7 +43,7 @@ function addRandomFeature() {
 
 const duration = 3000;
 function flash(feature) {
-  const start = new Date().getTime();
+  const start = Date.now();
   const flashGeom = feature.getGeometry().clone();
   const listenerKey = tileLayer.on('postrender', animate);
 
diff --git a/examples/feature-move-animation.js b/examples/feature-move-animation.js
index 95573e7a92..c5b6166cc1 100644
--- a/examples/feature-move-animation.js
+++ b/examples/feature-move-animation.js
@@ -142,7 +142,7 @@ fetch('data/polyline/route.json').then(function (response) {
         stopAnimation(false);
       } else {
         animating = true;
-        startTime = new Date().getTime();
+        startTime = Date.now();
         speed = speedInput.value;
         startButton.textContent = 'Cancel Animation';
         // hide geoMarker
diff --git a/examples/flight-animation.js b/examples/flight-animation.js
index 8948b4a438..8c13b907b2 100644
--- a/examples/flight-animation.js
+++ b/examples/flight-animation.js
@@ -120,7 +120,7 @@ function animateFlights(event) {
 
 function addLater(feature, timeout) {
   window.setTimeout(function () {
-    feature.set('start', new Date().getTime());
+    feature.set('start', Date.now());
     flightsSource.addFeature(feature);
   }, timeout);
 }
diff --git a/examples/wms-time.js b/examples/wms-time.js
index 356634a31a..a2c7419f32 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 > new Date()) {
+  if (startDate > Date.now()) {
     startDate = threeHoursAgo();
   }
   layers[1].getSource().updateParams({'TIME': startDate.toISOString()});