diff --git a/hub_ohlcv_lib.py b/hub_ohlcv_lib.py
index d4ca1c7..90ce0f5 100644
--- a/hub_ohlcv_lib.py
+++ b/hub_ohlcv_lib.py
@@ -11,7 +11,6 @@ CHART_TIMEFRAMES = frozenset(
         "1m",
         "5m",
         "15m",
-        "30m",
         "1h",
         "2h",
         "4h",
@@ -24,7 +23,6 @@ CHART_TIMEFRAME_ORDER = (
     "1m",
     "5m",
     "15m",
-    "30m",
     "1h",
     "2h",
     "4h",
@@ -43,7 +41,6 @@ TIMEFRAME_MS: dict[str, int] = {
     "1m": 60_000,
     "5m": 5 * 60_000,
     "15m": 15 * 60_000,
-    "30m": 30 * 60_000,
     "1h": 60 * 60_000,
     "2h": 2 * 60 * 60_000,
     "4h": 4 * 60 * 60_000,
diff --git a/manual_trading_hub/static/chart.js b/manual_trading_hub/static/chart.js
index 37d6573..8ce220b 100644
--- a/manual_trading_hub/static/chart.js
+++ b/manual_trading_hub/static/chart.js
@@ -17,7 +17,6 @@
     "1m": 60_000,
     "5m": 5 * 60_000,
     "15m": 15 * 60_000,
-    "30m": 30 * 60_000,
     "1h": 60 * 60_000,
     "2h": 2 * 60 * 60_000,
     "4h": 4 * 60 * 60_000,
@@ -29,7 +28,6 @@
     "1": "1m",
     "5": "5m",
     "15": "15m",
-    "30": "30m",
     "60": "1h",
     "120": "2h",
     "240": "4h",
@@ -44,7 +42,6 @@
     "1m": "1分钟",
     "5m": "5分钟",
     "15m": "15分钟",
-    "30m": "30分钟",
     "1h": "1小时",
     "2h": "2小时",
     "4h": "4小时",
diff --git a/manual_trading_hub/static/index.html b/manual_trading_hub/static/index.html
index cbbb466..04b2830 100644
--- a/manual_trading_hub/static/index.html
+++ b/manual_trading_hub/static/index.html
@@ -60,7 +60,7 @@
     <div id="page-market" class="page hidden">
       <div class="page-head">
         <h1><span class="head-tag">MKT</span> 行情区</h1>
-        <p class="page-desc">按需拉取 K 线，本地库保留 15 天（无后台自动更新）。快捷键：<kbd>F</kbd> 切换 K 线全屏/退出（全屏时 <kbd>Esc</kbd> 退出）；数字键切换周期：1/5/15/30/60/120/240/720/1440/10080（多键连按，如 1 再 5 为 15m）。</p>
+        <p class="page-desc">按需拉取 K 线，本地库保留 15 天（无后台自动更新）。快捷键：<kbd>F</kbd> 切换 K 线全屏/退出（全屏时 <kbd>Esc</kbd> 退出）；数字键切换周期：1/5/15/60/120/240/720/1440/10080（多键连按，如 1 再 5 为 15m）。</p>
       </div>
       <details class="hint-box">
         <summary>数据说明</summary>
@@ -84,7 +84,6 @@
             <option value="1m">1m</option>
             <option value="5m">5m</option>
             <option value="15m">15m</option>
-            <option value="30m">30m</option>
             <option value="1h">1h</option>
             <option value="2h">2h</option>
             <option value="4h">4h</option>
@@ -142,7 +141,6 @@
                 <option value="1m">1m</option>
                 <option value="5m">5m</option>
                 <option value="15m">15m</option>
-                <option value="30m">30m</option>
                 <option value="1h">1h</option>
                 <option value="2h">2h</option>
                 <option value="4h">4h</option>
@@ -246,7 +244,7 @@
 
   <div id="toast"></div>
   <script src="https://unpkg.com/lightweight-charts@4.2.0/dist/lightweight-charts.standalone.production.js"></script>
-  <script src="/assets/chart.js?v=20260528-hub-tf-trim"></script>
+  <script src="/assets/chart.js?v=20260528-hub-no-30m"></script>
   <script src="/assets/app.js?v=20260528-hub-tpsl-fix"></script>
 </body>
 </html>