diff --git a/app/(admin)/settings/admin-settings-client.tsx b/app/(admin)/settings/admin-settings-client.tsx
index 18d77ae..7321251 100644
--- a/app/(admin)/settings/admin-settings-client.tsx
+++ b/app/(admin)/settings/admin-settings-client.tsx
@@ -3,6 +3,7 @@
 import { useState, useEffect } from "react";
 import useSWR from "swr";
 import { toast } from "sonner";
+import { formatBeijingTime } from "@/lib/utils";
 import {
   Card,
   CardContent,
@@ -1446,7 +1447,7 @@ export function AdminSettingsClient() {
                       {img.userName || img.userEmail?.split("@")[0]}
                     </div>
                     <div className="text-[9px] text-center text-muted-foreground/60">
-                      {new Date(img.createdAt).toLocaleDateString("zh-CN", { month: "numeric", day: "numeric" })}
+                      {formatBeijingTime(img.createdAt, { month: "numeric", day: "numeric" })}
                     </div>
                   </div>
                 ))}
diff --git a/app/(chat)/featured/page.tsx b/app/(chat)/featured/page.tsx
index a2b46aa..68e1fd1 100644
--- a/app/(chat)/featured/page.tsx
+++ b/app/(chat)/featured/page.tsx
@@ -7,6 +7,7 @@ import { Dialog, DialogContent } from "@/components/ui/dialog";
 import { ArrowLeft, Download, ChevronLeft, ChevronRight, ChevronsLeft, ChevronsRight, Sparkles, User, Building2, Clock, Bot } from "lucide-react";
 import { Input } from "@/components/ui/input";
 import Image from "next/image";
+import { formatBeijingTime } from "@/lib/utils";
 
 type FeaturedImage = {
   id: string;
@@ -199,7 +200,7 @@ export default function FeaturedPage() {
                       </span>
                       <span className="flex items-center gap-1">
                         <Clock className="h-3 w-3" />
-                        {new Date(img.createdAt).toLocaleDateString("zh-CN", {
+                        {formatBeijingTime(img.createdAt, {
                           month: "short",
                           day: "numeric",
                         })}
diff --git a/app/(chat)/gallery/page.tsx b/app/(chat)/gallery/page.tsx
index 66b6e88..72b6323 100644
--- a/app/(chat)/gallery/page.tsx
+++ b/app/(chat)/gallery/page.tsx
@@ -8,6 +8,7 @@ import { ArrowLeft, Download, ChevronLeft, ChevronRight, ChevronsLeft, ChevronsR
 import { Input } from "@/components/ui/input";
 import Image from "next/image";
 import { toast } from "sonner";
+import { formatBeijingTime } from "@/lib/utils";
 
 type GalleryImage = {
   id: string;
@@ -341,7 +342,7 @@ export default function GalleryPage() {
                   <div className="absolute bottom-0 left-0 right-0 bg-gradient-to-t from-black/80 to-transparent p-2 translate-y-full group-hover:translate-y-0 transition-transform">
                     <p className="text-xs text-white truncate">{img.alt}</p>
                     <p className="text-xs text-white/70 mt-1">
-                      {new Date(img.createdAt).toLocaleString("zh-CN", { 
+                      {formatBeijingTime(img.createdAt, { 
                         month: "short", 
                         day: "numeric",
                         hour: "2-digit",
@@ -494,7 +495,7 @@ export default function GalleryPage() {
                   <div className="flex-1">
                     <p className="font-medium">{selectedImage.alt}</p>
                     <p className="text-sm text-muted-foreground mt-1">
-                      {new Date(selectedImage.createdAt).toLocaleString("zh-CN")}
+                      {formatBeijingTime(selectedImage.createdAt)}
                     </p>
                   </div>
                   <Button
diff --git a/app/api/extend/route.ts b/app/api/extend/route.ts
index 9c295e1..ff80a7c 100644
--- a/app/api/extend/route.ts
+++ b/app/api/extend/route.ts
@@ -281,16 +281,80 @@ export async function POST(request: NextRequest) {
     let messageId: string | null = null;
 
     if (contentType.includes("application/json")) {
-      // JSON格式：Base64图片
+      // JSON格式：支持Base64图片或图片URL
       const body = await request.json();
-      imageBase64 = body.image_base64;
+      const imageUrl = body.image_url; // 优先使用URL
+      imageBase64 = body.image_base64; // 如果没有URL，使用Base64
       prompt = body.prompt || "图像拓展处理";
       chatId = body.chatId || null;
       messageId = body.messageId || null;
       
+      // 如果提供了URL，直接使用；否则需要Base64
+      if (imageUrl) {
+        console.log("[Extend API] 使用图片URL:", imageUrl);
+        // 直接使用URL，跳过Base64转换和上传步骤
+        const startTime = Date.now();
+        const xScale = config.xScale || 1.5;
+        const yScale = config.yScale || 1.5;
+        
+        console.log(`[Extend API] 拓展参数: X=${xScale}, Y=${yScale}`);
+        
+        const extendedImageUrl = await extendImage(imageUrl, config.apiKey, xScale, yScale);
+        console.log("[Extend API] 拓展后图片URL:", extendedImageUrl);
+
+        // 下载拓展后的图片
+        console.log("[Extend API] 下载拓展后的图片...");
+        const imageResponse = await fetch(extendedImageUrl);
+        if (!imageResponse.ok) {
+          throw new Error(`下载拓展图片失败: ${imageResponse.status} ${imageResponse.statusText}`);
+        }
+
+        const arrayBuffer = await imageResponse.arrayBuffer();
+        const buffer = Buffer.from(arrayBuffer);
+        const extendedImageBase64 = buffer.toString("base64");
+
+        // 上传到S3
+        console.log("[Extend API] 上传到S3...");
+        const { thumbnail, original } = await uploadBase64ToS3(extendedImageBase64, "image/jpeg");
+
+        // 保存到数据库（相册和生图记录）
+        console.log("[Extend API] 保存到数据库...");
+        let savedImage;
+        try {
+          [savedImage] = await db
+            .insert(generatedImage)
+            .values({
+              userId,
+              chatId: chatId || null,
+              messageId: messageId || null,
+              thumbnailUrl: thumbnail,
+              originalUrl: original,
+              prompt: prompt || "图像拓展处理",
+              modelId: "extend-1.0",
+              imageSize: "2K",
+            })
+            .returning();
+          console.log(`[Extend API] ✅ 图片已保存到相册和生图记录，ID: ${savedImage.id}`);
+        } catch (dbError) {
+          console.error("[Extend API] ❌ 保存到数据库失败:", dbError);
+        }
+
+        const processingTime = ((Date.now() - startTime) / 1000).toFixed(2);
+        console.log(`[Extend API] ✅ 图像拓展完成，处理时间: ${processingTime}秒`);
+
+        // 返回结果
+        return NextResponse.json({
+          success: true,
+          original_url: original,
+          thumbnail_url: thumbnail,
+          base64: extendedImageBase64,
+          processing_time: parseFloat(processingTime),
+        });
+      }
+      
       if (!imageBase64) {
         return NextResponse.json(
-          { error: "缺少image_base64参数" },
+          { error: "缺少image_base64或image_url参数" },
           { status: 400 }
         );
       }
@@ -352,21 +416,28 @@ export async function POST(request: NextRequest) {
     console.log("[Extend API] 上传到S3...");
     const { thumbnail, original } = await uploadBase64ToS3(extendedImageBase64, "image/jpeg");
 
-    // 6. 保存到数据库
+    // 6. 保存到数据库（相册和生图记录）
     console.log("[Extend API] 保存到数据库...");
-    const [savedImage] = await db
-      .insert(generatedImage)
-      .values({
-        userId,
-        chatId,
-        messageId,
-        thumbnailUrl: thumbnail,
-        originalUrl: original,
-        prompt,
-        modelId: "extend-1.0",
-        imageSize: "2K",
-      })
-      .returning();
+    let savedImage;
+    try {
+      [savedImage] = await db
+        .insert(generatedImage)
+        .values({
+          userId,
+          chatId: chatId || null,
+          messageId: messageId || null,
+          thumbnailUrl: thumbnail,
+          originalUrl: original,
+          prompt: prompt || "图像拓展处理",
+          modelId: "extend-1.0",
+          imageSize: "2K",
+        })
+        .returning();
+      console.log(`[Extend API] ✅ 图片已保存到相册和生图记录，ID: ${savedImage.id}`);
+    } catch (dbError) {
+      console.error("[Extend API] ❌ 保存到数据库失败:", dbError);
+      // 数据库保存失败时仍然返回成功，但记录错误（图片已上传到S3，用户可以访问）
+    }
 
     const processingTime = ((Date.now() - startTime) / 1000).toFixed(2);
     console.log(`[Extend API] ✅ 图像拓展完成，处理时间: ${processingTime}秒`);
diff --git a/components/image-annotator.tsx b/components/image-annotator.tsx
index 28f2569..c3448fd 100644
--- a/components/image-annotator.tsx
+++ b/components/image-annotator.tsx
@@ -831,19 +831,17 @@ export function ImageAnnotator({ imageUrl, onConfirm, onCancel, initialResizeMod
 
     setIsExtending(true);
     try {
-      // 使用原图URL获取原图数据，而不是canvas的预览图
-      console.log("[图像拓展] 使用原图URL获取数据:", originalImageUrl);
-      const base64Data = await imageUrlToBase64(originalImageUrl);
-      console.log("[图像拓展] 原图Base64长度:", base64Data.length, "字符");
+      // 直接使用原图URL，而不是转换为base64
+      console.log("[图像拓展] 使用原图URL:", originalImageUrl);
 
-      // 调用图像拓展API
+      // 调用图像拓展API（直接发送URL）
       const response = await fetch("/api/extend", {
         method: "POST",
         headers: {
           "Content-Type": "application/json",
         },
         body: JSON.stringify({
-          image_base64: base64Data,
+          image_url: originalImageUrl, // 直接发送图片URL
           prompt: "画图标注-图像拓展处理", // 可选：添加提示词
         }),
       });
diff --git a/lib/utils.ts b/lib/utils.ts
index d94b492..2badd34 100644
--- a/lib/utils.ts
+++ b/lib/utils.ts
@@ -114,3 +114,40 @@ export function getTextFromMessage(message: ChatMessage | UIMessage): string {
     .map((part) => (part as { type: 'text'; text: string}).text)
     .join('');
 }
+
+/**
+ * 将UTC时间转换为北京时间（UTC+8）
+ * @param date - Date对象或时间字符串
+ * @returns 北京时间对应的Date对象
+ */
+export function toBeijingTime(date: Date | string): Date {
+  const d = typeof date === "string" ? new Date(date) : date;
+  // 获取UTC时间戳
+  const utcTime = d.getTime() + (d.getTimezoneOffset() * 60 * 1000);
+  // 转换为北京时间（UTC+8）
+  const beijingTime = new Date(utcTime + (8 * 60 * 60 * 1000));
+  return beijingTime;
+}
+
+/**
+ * 格式化时间为北京时间字符串
+ * @param date - Date对象或时间字符串
+ * @param options - Intl.DateTimeFormatOptions 格式化选项
+ * @returns 格式化后的北京时间字符串
+ */
+export function formatBeijingTime(
+  date: Date | string,
+  options?: Intl.DateTimeFormatOptions
+): string {
+  const beijingTime = toBeijingTime(date);
+  const defaultOptions: Intl.DateTimeFormatOptions = {
+    year: "numeric",
+    month: "numeric",
+    day: "numeric",
+    hour: "2-digit",
+    minute: "2-digit",
+    timeZone: "Asia/Shanghai",
+    ...options,
+  };
+  return beijingTime.toLocaleString("zh-CN", defaultOptions);
+}