diff --git a/frontend/app.js b/frontend/app.js
index a41a548..a0fbcce 100644
--- a/frontend/app.js
+++ b/frontend/app.js
@@ -1735,7 +1735,16 @@ handleDragLeave(e) {
 
     formatDate(dateString) {
       if (!dateString) return '-';
-      const date = new Date(dateString);
+      
+      // SQLite 返回的是 UTC 时间字符串，需要显式处理
+      // 如果字符串不包含时区信息，手动添加 'Z' 标记为 UTC
+      let dateStr = dateString;
+      if (!dateStr.includes('Z') && !dateStr.includes('+') && !dateStr.includes('T')) {
+        // SQLite 格式: "2025-11-13 16:37:19" -> ISO格式: "2025-11-13T16:37:19Z"
+        dateStr = dateStr.replace(' ', 'T') + 'Z';
+      }
+      
+      const date = new Date(dateStr);
       const year = date.getFullYear();
       const month = String(date.getMonth() + 1).padStart(2, '0');
       const day = String(date.getDate()).padStart(2, '0');