Update 'index.html'

index.html

@@ -57,7 +57,7 @@ figure figcaption {
 <p class="news">
 Application deadlines:<br>
 <s>March 16 2022: early/non-EU</s><br>
-<b>April 28 2022: final deadline EU</b><br>
+<b>April 28 2022: final deadline EU</b><span id="daysleft"></span><br>
 <a href="https://www.pzwart.nl/application/">https://www.pzwart.nl/application/</a>
 </p>
 
@@ -130,5 +130,8 @@ Application deadlines:<br>
     <a href="zoom.html">Wiki "Zoom" interface</a> (archive, last updated 2018)
 </li>
 
+  <script>
+    document.getElementById("daysleft").innerHTML = ` -- ${Math.floor((new Date("2022-04-28") - new Date()) / (1000 * 60 * 60 * 24))} days left`;
+  </script>
 </body>
 </html>