diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 53b2c0847..aff4237ba 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -16,7 +16,6 @@ jobs:
       uses: nanzm/get-time-action@v1.1
       with:
         timeZone: 8
-        format: 'YYYY-MM-DD HH:mm:ss'
 
     - name: Build the Docker image
       env:
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 766d8258a..ee8894de2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,7 +17,6 @@ jobs:
         uses: nanzm/get-time-action@v1.1
         with:
           timeZone: 8
-          format: 'YYYY-MM-DD_HH:mm:ss'
 
       - name: Build and publish Docker Image to GitHub Packages Registry
         id: publish
diff --git a/GZCTF/ClientApp/src/pages/About.tsx b/GZCTF/ClientApp/src/pages/About.tsx
index 70a7a3f62..8cf45a0c0 100644
--- a/GZCTF/ClientApp/src/pages/About.tsx
+++ b/GZCTF/ClientApp/src/pages/About.tsx
@@ -4,6 +4,9 @@ import LogoHeader from '../components/LogoHeader'
 import WithNavBar from '../components/WithNavbar'
 import MainIcon from '../components/icon/MainIcon'
 
+const MODULE_LOAD_DATE = new Date()
+const dateTimeFormat = new Intl.DateTimeFormat(undefined, { dateStyle: 'long', timeStyle: 'long' })
+
 const useStyles = createStyles((theme) => ({
   brand: {
     color: theme.colors[theme.primaryColor][4],
@@ -13,7 +16,8 @@ const useStyles = createStyles((theme) => ({
 const About: FC = () => {
   const sha = import.meta.env.VITE_APP_GIT_SHA ?? '000000'
   const tag = import.meta.env.VITE_APP_GIT_NAME ?? 'develop'
-  const timestamp = import.meta.env.VITE_APP_BUILD_TIMESTAMP ?? '2022-07-23_12:00:00'
+  const timestamp = import.meta.env.VITE_APP_BUILD_TIMESTAMP ?? '2022-07-23T12:00:00+08:00'
+  const builtdate = import.meta.env.DEV ? MODULE_LOAD_DATE : new Date(timestamp)
   const { classes } = useStyles()
 
   return (
@@ -77,7 +81,7 @@ const About: FC = () => {
                     color="dimmed"
                     sx={(theme) => ({ fontFamily: theme.fontFamilyMonospace })}
                   >
-                    {`built at ${timestamp.replaceAll('_', ' ')}`}
+                    {`built at ${dateTimeFormat.format(builtdate)}`}
                   </Text>
                 </Group>
               </Stack>