diff --git a/webroot/index.html b/webroot/index.html
index a67682e..569aa84 100644
--- a/webroot/index.html
+++ b/webroot/index.html
@@ -14,6 +14,9 @@
     <link rel="stylesheet" href="css/error.css">
     <link rel="stylesheet" href="css/icons.css">
 
+    <script>
+      localStorage.setItem('/system/boot-time', String(Date.now()))
+    </script>
     <script src="js/errorCatcher.js" type="module"></script>
     <script src="js/errorScreen.js" type="module"></script>
     <script src="js/browserRedirect.js" type="module"></script>
diff --git a/webroot/js/main.js b/webroot/js/main.js
index 03c888d..dcf97dd 100644
--- a/webroot/js/main.js
+++ b/webroot/js/main.js
@@ -42,12 +42,11 @@ async function getModuleNames(moduleIds) {
 }
 
 (async () => {
-  console.time('rezygisk.js boot time')
   // Test ksu module availability
   exec('echo "Hello world!"')
-    .then(() => console.log('[kernelsu.js]: Package is ready!'))
+    .then(() => console.log('[kernelsu.js] Package is ready!'))
     .catch(err => {
-      console.log('[kernelsu.js]: Package is not ready! Below is error:')
+      console.log('[kernelsu.js] Package is not ready! Below is error:')
       console.error(err)
     })
 
@@ -92,17 +91,17 @@ async function getModuleNames(moduleIds) {
   if (androidVersionCmd.errno !== 0) return setError('WebUI', androidVersionCmd.stderr)
 
   document.getElementById('android_version_div').innerHTML = androidVersionCmd.stdout
-  console.log('[rezygisk.js]: Android version: ', androidVersionCmd.stdout)
+  console.log('[rezygisk.js] Android version: ', androidVersionCmd.stdout)
 
   const unameCmd = await exec('/system/bin/uname -r')
   if (unameCmd.errno !== 0) return setError('WebUI', unameCmd.stderr)
 
   document.getElementById('kernel_version_div').innerHTML = unameCmd.stdout
-  console.log('[rezygisk.js]: Kernel version: ', unameCmd.stdout)
+  console.log('[rezygisk.js] Kernel version: ', unameCmd.stdout)
 
   const cpuAbilistCmd = await exec('/system/bin/getprop ro.product.cpu.abilist')
   if (cpuAbilistCmd.errno !== 0) return setError('WebUI', cpuAbilistCmd.stderr)
-  console.log(`[rezygisk.js]: CPU ab list:\n${cpuAbilistCmd.stdout}`)
+  console.log(`[rezygisk.js] CPU ab list:\n${cpuAbilistCmd.stdout}`)
 
   const has64BitSupport = cpuAbilistCmd.stdout.includes('arm64-v8a') || cpuAbilistCmd.stdout.includes('x86_64')
   const has32BitSupport = cpuAbilistCmd.stdout.includes('armeabi-v7a') || cpuAbilistCmd.stdout.includes('armeabi') || cpuAbilistCmd.stdout.includes('x86')
@@ -116,7 +115,7 @@ async function getModuleNames(moduleIds) {
   }
 
   const catCmd = await exec('/system/bin/cat /data/adb/rezygisk/status')
-  console.log(`[rezygisk.js]: Binary infomation:\n${catCmd.stdout}`)
+  console.log(`[rezygisk.js] Binary infomation:\n${catCmd.stdout}`)
 
   if (catCmd.errno === 0) {
     const [ Version, Tracing, Daemon64, Zygote64 ] = catCmd.stdout.split('\n')
@@ -251,7 +250,7 @@ async function getModuleNames(moduleIds) {
     })
   })
 
-  console.log(`[rezygisk.js]: Module list:`)
+  console.log(`[rezygisk.js] Module list:`)
   console.log(all_modules)
 
   if (all_modules.length !== 0)
@@ -274,5 +273,7 @@ async function getModuleNames(moduleIds) {
       </div>`
   })
 
-  console.timeEnd('[rezygisk.js]: boot time')
+  const start_time = Number(localStorage.getItem('/system/boot-time'))
+  console.log('[rezygisk.js] boot time: ', Date.now() - start_time, 'ms')
+  localStorage.removeItem('/system/boot_time')
 })().catch((err) => setError('WebUI', err.stack ? err.stack : err.message))