diff --git a/framework/helper.class.php b/framework/helper.class.php
index 38b42bf5b6..b368adf933 100644
--- a/framework/helper.class.php
+++ b/framework/helper.class.php
@@ -305,6 +305,43 @@ class helper extends baseHelper
     {
         throw EndResponseException::create($content);
     }
+
+    /**
+     * Get date interval.
+     *
+     * @param  string|int $begin
+     * @param  string|int $end
+     * @param  string     $format  %Y-%m-%d %H:%i:%s
+     * @static
+     * @access public
+     * @return object|string
+     */
+    public static function getDateInterval($begin, $end = '', $format = '')
+    {
+        if(empty($end))    $end   = time();
+        if(is_int($begin)) $begin = date('Y-m-d H:i:s', $begin);
+        if(is_int($end))   $end   = date('Y-m-d H:i:s', $end);
+
+        $begin    = date_create($begin);
+        $end      = date_create($end);
+        $interval = date_diff($begin, $end);
+
+        if($format)
+        {
+            $dateInterval = $interval->format($format);
+        }
+        else
+        {
+            $dateInterval = new stdClass();
+            $dateInterval->year    = $interval->format('%Y');
+            $dateInterval->month   = $interval->format('%m');
+            $dateInterval->day     = $interval->format('%d');
+            $dateInterval->hour    = $interval->format('%H');
+            $dateInterval->minute  = $interval->format('%i');
+            $dateInterval->secound = $interval->format('%s');
+        }
+        return $dateInterval;
+    }
 }
 
 /**
diff --git a/module/admin/control.php b/module/admin/control.php
index c49cd97b5e..df9b8efada 100755
--- a/module/admin/control.php
+++ b/module/admin/control.php
@@ -37,11 +37,13 @@ class admin extends control
         $hasInternet = $this->admin->checkInternet();
         $clientLang  = $this->app->getClientLang();
         $langNotCN   = common::checkNotCN();
+        $dateUsed    = $this->admin->genDateUsed();
 
         $this->view->title       = $this->lang->admin->common;
         $this->view->position[]  = $this->lang->admin->index;
         $this->view->plugins     = $this->admin->getExtensionsByAPI('plugin', $langNotCN ? 5 : 6, $hasInternet);
         $this->view->patches     = $this->admin->getExtensionsByAPI('patch', 3, $hasInternet);
+        $this->view->dateUsed    = $dateUsed;
         $this->view->hasInternet = $hasInternet;
         $this->view->publicClass = ($hasInternet and !$langNotCN) ? $this->admin->getPublicClassByAPI(3) : array();
         $this->view->langNotCN   = $langNotCN;
diff --git a/module/admin/lang/de.php b/module/admin/lang/de.php
index 67e77b6ae4..7d4d570f4a 100755
--- a/module/admin/lang/de.php
+++ b/module/admin/lang/de.php
@@ -25,6 +25,13 @@ $lang->admin->resetPWDSetting = 'Reset password Setting';
 $lang->admin->tableEngine     = 'Table Engine';
 $lang->admin->setModuleIndex  = 'Set Module';
 
+$lang->admin->mon              = 'month';
+$lang->admin->day              = 'day';
+$lang->admin->updateDynamics   = 'updateDynamics';
+$lang->admin->updatePatch      = 'updatePatch';
+$lang->admin->upgradeRecommend = 'upgradeRecommend';
+$lang->admin->zentaoUsed       = '';
+
 $lang->admin->api                  = 'API';
 $lang->admin->log                  = 'Log';
 $lang->admin->setting              = 'Einstellungen';
@@ -170,10 +177,4 @@ $lang->admin->menuSetting['dev']['desc']       = 'Support for secondary developm
 $lang->admin->menuSetting['convert']['name']   = 'Data Import';
 $lang->admin->menuSetting['convert']['desc']   = 'Data import from third-party systems.';
 
-$lang->admin->mon              = 'month';
-$lang->admin->day              = 'day';
-$lang->admin->updateDynamics   = 'updateDynamics';
-$lang->admin->updatePatch      = 'updatePatch';
-$lang->admin->upgradeRecommend = 'upgradeRecommend';
-
 include dirname(__FILE__) . '/menu.php';
diff --git a/module/admin/lang/en.php b/module/admin/lang/en.php
index 2314b2dd83..51a566be61 100755
--- a/module/admin/lang/en.php
+++ b/module/admin/lang/en.php
@@ -25,6 +25,13 @@ $lang->admin->resetPWDSetting = 'Reset password Setting';
 $lang->admin->tableEngine     = 'Table Engine';
 $lang->admin->setModuleIndex  = 'Set Module';
 
+$lang->admin->mon              = 'month';
+$lang->admin->day              = 'day';
+$lang->admin->updateDynamics   = 'updateDynamics';
+$lang->admin->updatePatch      = 'updatePatch';
+$lang->admin->upgradeRecommend = 'upgradeRecommend';
+$lang->admin->zentaoUsed       = '';
+
 $lang->admin->api                  = 'API';
 $lang->admin->log                  = 'Log';
 $lang->admin->setting              = 'Setting';
@@ -170,10 +177,4 @@ $lang->admin->menuSetting['dev']['desc']       = 'Support for secondary developm
 $lang->admin->menuSetting['convert']['name']   = 'Data Import';
 $lang->admin->menuSetting['convert']['desc']   = 'Data import from third-party systems.';
 
-$lang->admin->mon              = 'month';
-$lang->admin->day              = 'day';
-$lang->admin->updateDynamics   = 'updateDynamics';
-$lang->admin->updatePatch      = 'updatePatch';
-$lang->admin->upgradeRecommend = 'upgradeRecommend';
-
 include dirname(__FILE__) . '/menu.php';
diff --git a/module/admin/lang/fr.php b/module/admin/lang/fr.php
index 2bda8e62e3..2760ba8873 100755
--- a/module/admin/lang/fr.php
+++ b/module/admin/lang/fr.php
@@ -25,6 +25,13 @@ $lang->admin->resetPWDSetting = 'Reset password Setting';
 $lang->admin->tableEngine     = 'Table Engine';
 $lang->admin->setModuleIndex  = 'Set Module';
 
+$lang->admin->mon              = 'month';
+$lang->admin->day              = 'day';
+$lang->admin->updateDynamics   = 'updateDynamics';
+$lang->admin->updatePatch      = 'updatePatch';
+$lang->admin->upgradeRecommend = 'upgradeRecommend';
+$lang->admin->zentaoUsed       = '';
+
 $lang->admin->api                  = 'API';
 $lang->admin->log                  = 'Log';
 $lang->admin->setting              = 'Paramétrage';
@@ -170,10 +177,4 @@ $lang->admin->menuSetting['dev']['desc']       = 'Support for secondary developm
 $lang->admin->menuSetting['convert']['name']   = 'Data Import';
 $lang->admin->menuSetting['convert']['desc']   = 'Data import from third-party systems.';
 
-$lang->admin->mon              = 'month';
-$lang->admin->day              = 'day';
-$lang->admin->updateDynamics   = 'updateDynamics';
-$lang->admin->updatePatch      = 'updatePatch';
-$lang->admin->upgradeRecommend = 'upgradeRecommend';
-
 include dirname(__FILE__) . '/menu.php';
diff --git a/module/admin/lang/zh-cn.php b/module/admin/lang/zh-cn.php
index 64939cc0db..ff3b87a8a8 100755
--- a/module/admin/lang/zh-cn.php
+++ b/module/admin/lang/zh-cn.php
@@ -25,6 +25,13 @@ $lang->admin->resetPWDSetting = '重置密码设置';
 $lang->admin->tableEngine     = '表引擎';
 $lang->admin->setModuleIndex  = '系统功能配置';
 
+$lang->admin->mon              = '月';
+$lang->admin->day              = '天';
+$lang->admin->updateDynamics   = '更新动态';
+$lang->admin->updatePatch      = '补丁更新';
+$lang->admin->upgradeRecommend = '推荐升级';
+$lang->admin->zentaoUsed       = '您已使用禅道';
+
 $lang->admin->api                  = '接口';
 $lang->admin->log                  = '日志';
 $lang->admin->setting              = '设置';
@@ -170,10 +177,4 @@ $lang->admin->menuSetting['dev']['desc']       = '支持对系统进行二次开
 $lang->admin->menuSetting['convert']['name']   = '数据导入';
 $lang->admin->menuSetting['convert']['desc']   = '第三方系统的数据导入。';
 
-$lang->admin->mon              = '月';
-$lang->admin->day              = '天';
-$lang->admin->updateDynamics   = '更新动态';
-$lang->admin->updatePatch      = '补丁更新';
-$lang->admin->upgradeRecommend = '推荐升级';
-
 include dirname(__FILE__) . '/menu.php';
diff --git a/module/admin/model.php b/module/admin/model.php
index 5a14dcb131..a24aa192b3 100755
--- a/module/admin/model.php
+++ b/module/admin/model.php
@@ -593,4 +593,21 @@ class adminModel extends model
 
         return (bool)$connected;
     }
+
+    /**
+     * Get date used object.
+     *
+     * @access public
+     * @return object
+     */
+    public function genDateUsed()
+    {
+        $firstUseDate = $this->dao->select('date')->from(TABLE_ACTION)
+            ->where('date')->gt('0000-00-00')
+            ->andWhere('actor')->eq($this->app->user->account)
+            ->orderBy('date_asc')
+            ->fetch('date');
+
+        return helper::getDateInterval($firstUseDate);
+    }
 }
diff --git a/module/admin/view/index.html.php b/module/admin/view/index.html.php
index 79060aee20..9f32729dc1 100755
--- a/module/admin/view/index.html.php
+++ b/module/admin/view/index.html.php
@@ -90,7 +90,16 @@
   <div class="side panel" style="background: #FCFDFE">
     <div class="h-56 flex align-center justify-between">
       <div class="panel-title"><?php echo $lang->admin->zentaoInfo?></div>
-      <div class="time-count">您已使用禅道<span class="time-block">5</span><?php echo $lang->year?><span class="time-block">9</span><?php echo $lang->admin->mon?><span class="time-block">19</span><?php echo $lang->admin->day?></div>
+      <div class="time-count">
+        <?php echo $lang->admin->zentaoUsed;?>
+        <?php if($dateUsed->year):?>
+        <span class="time-block"><?php echo $dateUsed->year;?></span><?php echo $lang->year;?>
+        <?php endif;?>
+        <?php if($dateUsed->month):?>
+        <span class="time-block"><?php echo $dateUsed->month;?></span><?php echo $lang->admin->mon;?>
+        <?php endif;?>
+        <span class="time-block"><?php echo $dateUsed->day;?></span><?php echo $lang->admin->day;?>
+      </div>
     </div>
     <div class="border-gray mb-16 radius-4">
       <div class="h-40 pl-16 flex align-center justify-between">