diff --git a/package.json b/package.json
index fb67591..3a48ba7 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "ustb-wifi-tools",
   "private": true,
-  "version": "0.8.8",
+  "version": "0.8.9",
   "type": "module",
   "scripts": {
     "dev": "vite",
diff --git a/src-tauri/Cargo.lock b/src-tauri/Cargo.lock
index 4bc9f1d..63449ce 100644
--- a/src-tauri/Cargo.lock
+++ b/src-tauri/Cargo.lock
@@ -4626,7 +4626,7 @@ dependencies = [
 
 [[package]]
 name = "ustb-wifi-tools"
-version = "0.8.8"
+version = "0.8.9"
 dependencies = [
  "anyhow",
  "chrono",
diff --git a/src-tauri/Cargo.toml b/src-tauri/Cargo.toml
index 24dc952..a862c70 100644
--- a/src-tauri/Cargo.toml
+++ b/src-tauri/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "ustb-wifi-tools"
-version = "0.8.8"
+version = "0.8.9"
 description = "A Tauri App that can be used to get information of the USTB Wifi"
 authors = ["CakeAL"]
 edition = "2021"
diff --git a/src-tauri/tauri.conf.json b/src-tauri/tauri.conf.json
index 5cc91b0..fcb805f 100644
--- a/src-tauri/tauri.conf.json
+++ b/src-tauri/tauri.conf.json
@@ -1,7 +1,7 @@
 {
   "productName": "ustb-wifi-tools",
   "mainBinaryName": "ustb-wifi-tools",
-  "version": "0.8.8",
+  "version": "0.8.9",
   "identifier": "ustb.wifi.tools",
   "build": {
     "beforeDevCommand": "pnpm dev",
diff --git a/src/helper.ts b/src/helper.ts
index b8728c3..413c5cc 100644
--- a/src/helper.ts
+++ b/src/helper.ts
@@ -25,3 +25,11 @@ export const railStyle = ({
 export const mb2gb = (mb: number | undefined) => {
   return parseFloat(((mb as number) / 1024).toFixed(2));
 };
+
+export const min2hour = (min: number | undefined) => {
+  return parseFloat(((min as number) / 60).toFixed(2));
+};
+
+export const min2day = (min: number | undefined) => {
+  return parseFloat(((min as number) / 60 / 24).toFixed(2));
+};
diff --git a/src/pages/About.vue b/src/pages/About.vue
index b296d5a..deeb517 100644
--- a/src/pages/About.vue
+++ b/src/pages/About.vue
@@ -118,7 +118,7 @@ const show1 = ref(false);
         <p>4. 通过 pt 站下载大型软件（比如 Photoshop 等）</p>
         <p>5. 自建/使用 ipv6 代理服务器</p>
         <br />
-        <p>当前 version = "0.8.8"</p>
+        <p>当前 version = "0.8.9"</p>
       </n-space>
     </n-card>
   </div>
diff --git a/src/pages/MonthPay.vue b/src/pages/MonthPay.vue
index 28cf20b..db25de1 100644
--- a/src/pages/MonthPay.vue
+++ b/src/pages/MonthPay.vue
@@ -2,7 +2,7 @@
 import { invoke } from "@tauri-apps/api/core";
 import { onMounted, ref } from "vue";
 import { useLoadingBar, useMessage } from "naive-ui";
-import { mb2gb } from "../helper";
+import { mb2gb, min2day, min2hour } from "../helper";
 
 interface MonthlyData {
   month: number;
@@ -78,15 +78,6 @@ const load_month_pay = async () => {
   // console.log(month_pay.value);
   loadingBar.finish();
 };
-
-const min2hour = (min: number | undefined) => {
-  return parseFloat(((min as number) / 60).toFixed(2));
-};
-
-const min2day = (min: number | undefined) => {
-  return parseFloat(((min as number) / 60 / 24).toFixed(2));
-};
-
 </script>
 
 <template>
diff --git a/src/pages/MonthlyUserLog.vue b/src/pages/MonthlyUserLog.vue
index 70750f3..51e40c0 100644
--- a/src/pages/MonthlyUserLog.vue
+++ b/src/pages/MonthlyUserLog.vue
@@ -3,7 +3,7 @@ import { onMounted, ref } from "vue";
 import { invoke } from "@tauri-apps/api/core";
 import { EveryLoginData } from "./UserLoginLog.vue";
 import { useLoadingBar, useMessage } from "naive-ui";
-import { railStyle, mb2gb } from "../helper";
+import { railStyle, mb2gb, min2hour } from "../helper";
 import dayjs from "dayjs";
 
 const pop_message = useMessage();
@@ -226,7 +226,7 @@ const select_mb_or_gb = (value: string) => {
                   <td>花费:</td>
                   <td>{{ item.cost.toFixed(2) }} 元</td>
                   <td>使用时长:</td>
-                  <td>{{ (item.used_duration / 60).toFixed(2) }} h</td>
+                  <td>{{ min2hour(item.used_duration) }} h</td>
                 </tr>
               </tbody>
             </n-table>