diff --git a/templates/common.js b/templates/common.js
index d94cf7c..ae75d77 100644
--- a/templates/common.js
+++ b/templates/common.js
@@ -1,4 +1,4 @@
-let elem = document.documentElement;
+const elem = document.documentElement;
 function openFullscreen() {
     if (elem.requestFullscreen) {
         elem.requestFullscreen();
@@ -12,13 +12,11 @@ function openFullscreen() {
 }
 
 function getTime() {
-    let d = new Date();
-    let hours = d.getHours();
-    let mins = d.getMinutes();
-    let sec = d.getSeconds();
-    let h = ("00" + hours).slice(-2);
-    let m = ("00" + mins).slice(-2);
-    let s = ("00" + sec).slice(-2);
-    let time = h + ":" + m + ":" + s;
-    document.getElementById("time").innerHTML = time;
+    const d = new Date();
+    document.getElementById("time").innerHTML =
+        ("00" + d.getHours()).slice(-2) +
+        ":" +
+        ("00" + d.getMinutes()).slice(-2) +
+        ":" +
+        ("00" + d.getSeconds()).slice(-2);
 }