diff --git a/third_party/phpcommon b/third_party/phpcommon
index 2ca4273..d56fa02 160000
--- a/third_party/phpcommon
+++ b/third_party/phpcommon
@@ -1 +1 @@
-Subproject commit 2ca4273f80ca9a19ddd282e331229ea1b853d372
+Subproject commit d56fa02411e557908dc2f4f319877a0af70c7957
diff --git a/webapp/controller/GMController.class.php b/webapp/controller/GMController.class.php
index 49cb1fe..bcb61c6 100644
--- a/webapp/controller/GMController.class.php
+++ b/webapp/controller/GMController.class.php
@@ -36,4 +36,36 @@ class GMController {
         return $conn;
     }
 
+    public function clearDB()
+    {
+
+    }
+
+    public function getSysTime()
+    {
+        echo phpcommon\timestamp_to_datetime(phpcommon\getNowTime());
+    }
+
+    public function setSysTime()
+    {
+        if (!defined('GLOBAL_TIME_OFFSET_KEY')) {
+            die('不支持设置系统时间');
+            return;
+        }
+        $newtime = strtotime($_REQUET['newtime']);
+        if ($newtime <= 0) {
+            die('时间格式错误');
+            return;
+        }
+        $time_offset = $newtime - phpcommon\getRealTime();
+        $r = new phpcommon\Redis(array(
+            'host' => '127.0.0.1',
+            'port' => 6379,
+            'passwd' => ''
+
+        ));
+        $r->set(GLOBAL_TIME_OFFSET_KEY, $time_offset);
+    }
+
+
 }