diff --git a/webapp/controller/BaseController.class.php b/webapp/controller/BaseController.class.php
index 548fe7f7..af2212d8 100644
--- a/webapp/controller/BaseController.class.php
+++ b/webapp/controller/BaseController.class.php
@@ -7,6 +7,7 @@ class BaseController {
     private $nowtime = 0;
     private $marketDbConn = null;
     private $relationDbConn = null;
+    private $timeOffset = 0;
 
     function __construct()
     {
@@ -27,7 +28,17 @@ class BaseController {
 
     public function _getNowTime()
     {
-        return $this->nowtime;
+        return $this->nowtime + $this->timeOffset;
+    }
+
+    public function _getTimeOffset()
+    {
+        return $this->timeOffset;
+    }
+
+    public function _setTimeOffset($seconds)
+    {
+        $this->timeOffset = seconds;
     }
 
     public function _getTodayLeadStr()