diff --git a/hwe/commandlist.php b/hwe/commandlist.php
index ee586cd7..e011a574 100644
--- a/hwe/commandlist.php
+++ b/hwe/commandlist.php
@@ -20,6 +20,7 @@ function myCommandList() {
     $userID = Session::getUserID();
 
     $date = date('Y-m-d H:i:s');
+    $date_precise = (new \DateTime())->format("Y-m-d H:i:s.u");
 
     // 명령 목록
     $admin = $gameStor->getValues(['year','month','turnterm','turntime','opentime']);
@@ -33,7 +34,7 @@ function myCommandList() {
 
     echo "<table width=300 height=700 class='tb_layout bg2'>
     <tr>
-        <td colspan=4 align=center id=bg0><b>- 명령 목록 - <input value='$date' type=text id=clock size=19 style=background-color:black;color:white;border-style:none;></b></td>
+        <td colspan=4 align=center id=bg0><b>- 명령 목록 - <input value='$date' type=text id=clock size=19 style=background-color:black;color:white;border-style:none; data-server-time='{$date_precise}'></b></td>
     </tr>";
 
     $year = $admin['year'];
diff --git a/hwe/index.php b/hwe/index.php
index 42dc6d06..deab7481 100644
--- a/hwe/index.php
+++ b/hwe/index.php
@@ -91,7 +91,6 @@ $serverCnt = $db->queryFirstField('SELECT count(*) FROM ng_games');
 <?=WebUtil::printJS('../e_lib/jquery.redirect.js')?>
 <?=WebUtil::printJS('../e_lib/bootstrap.bundle.min.js')?>
 <?=WebUtil::printJS('../e_lib/moment.min.js')?>
-<?=WebUtil::printJS('../e_lib/moment-timezone-with-data-10-year-range.min.js')?>
 <?=WebUtil::printJS('../e_lib/linkify/linkify.min.js')?>
 <?=WebUtil::printJS('../e_lib/linkify/linkify-string.min.js')?>
 <?=WebUtil::printJS('../d_shared/common_path.js')?>
diff --git a/hwe/js/main.js b/hwe/js/main.js
index c67f217c..bb92e7b3 100644
--- a/hwe/js/main.js
+++ b/hwe/js/main.js
@@ -66,11 +66,21 @@ function reloadCommandList(){
 
 function myclock() {
 
-    $('#clock').val(moment().tz('Asia/Seoul').format('YYYY-MM-DD HH:mm:ss'));
+    var $clock = $('#clock');
+    var now_clock = moment();
+
+    if(!$clock.attr('data-time-diff')){
+        var base_clock = moment($clock.attr('data-server-time'));
+        $clock.attr('data-time-diff', base_clock.diff(now_clock));
+    }
+
+    var game_clock = now_clock.add(parseInt($clock.attr('data-time-diff')), 'milliseconds');
+
+    $('#clock').val(game_clock.format('YYYY-MM-DD HH:mm:ss'));
     
     window.setTimeout(function(){
         myclock();
-    }, 1000);
+    }, 500);
 }
 
 jQuery(function($){