diff --git a/server/public/index.html b/server/public/index.html
index 6242558..e3f83a2 100644
--- a/server/public/index.html
+++ b/server/public/index.html
@@ -745,7 +745,8 @@
         }
 
         function formatMonth(dateStr) {
-            const parts = dateStr.split('/');
+            const clean = dateStr.replace(/-/g, '/');
+            const parts = clean.split('/');
             if (parts.length >= 2) return `${parts[0]}年${parseInt(parts[1], 10)}月`;
             return dateStr.substring(0,7);
         }
diff --git a/server/server.js b/server/server.js
index 84cfe8d..62bb9e7 100644
--- a/server/server.js
+++ b/server/server.js
@@ -27,6 +27,19 @@ const TIMEZONE = 'Asia/Shanghai';
 function timestamp() {
   return new Date().toLocaleString('zh-CN', { timeZone: TIMEZONE, hour12: false });
 }
+function normalizeTime(str) {
+  if (!str) return timestamp();
+  // 已经是标准格式 yyyy/M/d HH:mm:ss 直接返回
+  if (/\d{4}\/\d{1,2}\/\d{1,2} \d{2}:\d{2}:\d{2}/.test(str)) return str;
+  // 纯日期 yyyy-MM-dd 或 yyyy/MM/dd → 补充 00:00:00
+  const clean = str.replace(/-/g, '/');
+  if (/^\d{4}\/\d{1,2}\/\d{1,2}$/.test(clean)) return clean + ' 00:00:00';
+  // 带时间但分隔符是 - → 统一换成 /
+  const withSlash = str.replace(/-/g, '/');
+  if (/\d{4}\/\d{1,2}\/\d{1,2} \d{2}:\d{2}:\d{2}/.test(withSlash)) return withSlash;
+  // 无法识别，返回当前时间
+  return timestamp();
+}
 function currentTimeStr() { return timestamp(); }
 
 // 初始化用户
@@ -422,7 +435,7 @@ function handleAIResult(aiResult, roomId, username, originalText, attachments) {
         } catch(e) { console.error('❌ 解析附件失败:', e); }
       }
     }
-    const createdTime = aiResult.created_time || now;
+    const createdTime = normalizeTime(aiResult.created_time);
     // 新建 vs 更新：AI 标记 is_new 时强制新建，不尝试匹配已有记录
     const isNew = aiResult.is_new === true;
     let purchase;