diff --git a/app/atom.xml/route.ts b/app/atom.xml/route.ts
index 465a009..cefc868 100644
--- a/app/atom.xml/route.ts
+++ b/app/atom.xml/route.ts
@@ -2,7 +2,7 @@ import { db } from "@/lib/db";
 
 const escapeXml = (value: string) => value.replace(/[<>&'\"]/g, (char) => ({ "<": "&lt;", ">": "&gt;", "&": "&amp;", "'": "&apos;", '"': "&quot;" }[char] || char));
 export async function GET() {
-  const origin = (process.env.NEXT_PUBLIC_APP_URL || "http://localhost:8088").replace(/\/$/, ""); const posts = db.prepare("SELECT p.id,p.content,p.created_at,u.username FROM posts p JOIN users u ON u.id=p.author_id WHERE p.visibility='PUBLIC' AND p.hidden=0 ORDER BY COALESCE(p.remote_created_at,p.created_at) DESC LIMIT 50").all() as { id: number; content: string; created_at: string; username: string }[]; const updated = posts[0] ? new Date(posts[0].created_at + "Z").toISOString() : new Date().toISOString();
-  const entries = posts.map((post) => `<entry><id>${origin}/posts/${post.id}</id><title>${escapeXml(`@${post.username} 的貼文`)}</title><link href="${origin}/posts/${post.id}"/><updated>${new Date(post.created_at + "Z").toISOString()}</updated><content type="text">${escapeXml(post.content)}</content></entry>`).join("");
+  const origin = (process.env.NEXT_PUBLIC_APP_URL || "http://localhost:8088").replace(/\/$/, ""); const posts = db.prepare("SELECT p.id,p.content,COALESCE(p.remote_created_at,p.created_at) AS published_at,u.username FROM posts p JOIN users u ON u.id=p.author_id WHERE p.visibility='PUBLIC' AND p.hidden=0 ORDER BY COALESCE(p.remote_created_at,p.created_at) DESC LIMIT 50").all() as { id: number; content: string; published_at: string; username: string }[]; const updated = posts[0] ? new Date(posts[0].published_at).toISOString() : new Date().toISOString();
+  const entries = posts.map((post) => `<entry><id>${origin}/posts/${post.id}</id><title>${escapeXml(`@${post.username} 的貼文`)}</title><link href="${origin}/posts/${post.id}"/><updated>${new Date(post.published_at).toISOString()}</updated><content type="text">${escapeXml(post.content)}</content></entry>`).join("");
   return new Response(`<?xml version="1.0" encoding="utf-8"?><feed xmlns="http://www.w3.org/2005/Atom"><title>Mebbling</title><id>${origin}</id><link href="${origin}/atom.xml" rel="self"/><updated>${updated}</updated>${entries}</feed>`, { headers: { "Content-Type": "application/atom+xml; charset=utf-8", "Cache-Control": "public, max-age=300" } });
 }
diff --git a/app/components/post-card.tsx b/app/components/post-card.tsx
index f4150b8..a404be2 100644
--- a/app/components/post-card.tsx
+++ b/app/components/post-card.tsx
@@ -3,9 +3,9 @@ import { Attachments } from "./attachments";
 import { Markdown } from "./markdown";
 import { canonicalTags } from "@/lib/tags";
 
-export type PublicPost = { id: number; source_id: number | null; content: string; tags_json: string; attachments_json: string; created_at: string; username: string; name: string | null; source_base_url: string | null; comment_count: number; reaction_count: number };
+export type PublicPost = { id: number; source_id: number | null; content: string; tags_json: string; attachments_json: string; created_at: string; remote_created_at?: string | null; username: string; name: string | null; source_base_url: string | null; comment_count: number; reaction_count: number };
 
 export function PostCard({ post }: { post: PublicPost }) {
   let tags: string[] = []; try { tags = canonicalTags(JSON.parse(post.tags_json)); } catch { /* Ignore malformed legacy tags. */ }
-  return <article className="card"><div className="space"><Link className="meta post-name-link" href={`/posts/${post.id}`}>@{post.username}{post.name ? ` · ${post.name}` : ""}</Link><span className="meta">{new Date(post.created_at).toLocaleString("zh-TW")}</span></div><Markdown content={post.content} tags={tags} compact /><Attachments json={post.attachments_json} sourceBaseUrl={post.source_base_url} compact /><div className="row">{tags.map((tag) => <Link className="tag" href={`/tags/${encodeURIComponent(tag)}`} key={tag}>#{tag}</Link>)}{post.source_id && <Link className="tag" href={`/sources/${post.source_id}`}>來源</Link>}<Link href={`/posts/${post.id}`}>閱讀全文 · 💬 {post.comment_count}　🙂 {post.reaction_count}</Link></div></article>;
+  const publishedAt = post.remote_created_at || post.created_at; return <article className="card"><div className="space"><Link className="meta post-name-link" href={`/posts/${post.id}`}>@{post.username}{post.name ? ` · ${post.name}` : ""}</Link><span className="meta">{new Date(publishedAt).toLocaleString("zh-TW")}</span></div><Markdown content={post.content} tags={tags} compact /><Attachments json={post.attachments_json} sourceBaseUrl={post.source_base_url} compact /><div className="row">{tags.map((tag) => <Link className="tag" href={`/tags/${encodeURIComponent(tag)}`} key={tag}>#{tag}</Link>)}{post.source_id && <Link className="tag" href={`/sources/${post.source_id}`}>來源</Link>}<Link href={`/posts/${post.id}`}>閱讀全文 · 💬 {post.comment_count}　🙂 {post.reaction_count}</Link></div></article>;
 }
diff --git a/app/posts/[id]/page.tsx b/app/posts/[id]/page.tsx
index b410d34..af40cd6 100644
--- a/app/posts/[id]/page.tsx
+++ b/app/posts/[id]/page.tsx
@@ -23,7 +23,7 @@ export default async function PostPage({ params, searchParams }: { params: Promi
   const bookmark = user ? db.prepare("SELECT kind FROM bookmarks WHERE user_id=? AND post_id=?").get(user.id, id) as { kind: string } | undefined : undefined;
   const comments = db.prepare("SELECT c.*,u.username FROM comments c JOIN users u ON u.id=c.author_id WHERE c.post_id=? AND c.hidden=0 ORDER BY c.created_at").all(id) as any[];
   const reactions = db.prepare("SELECT emoji,count(*) count FROM reactions WHERE post_id=? GROUP BY emoji").all(id) as any[];
-  let tags: string[] = []; try { tags = canonicalTags(JSON.parse(post.tags_json)); } catch {} return <article><p className="meta">@{post.username} · {post.remote_display_name || post.name || "Hub"} · {new Date(post.created_at).toLocaleString("zh-TW")}{post.remote_url && <> · <a href={post.remote_url} target="_blank" rel="noreferrer">在 Memos 開啟</a></>}</p><section className="card"><Markdown content={post.content} tags={tags} /></section><Attachments json={post.attachments_json} sourceBaseUrl={post.source_base_url} />
+  let tags: string[] = []; try { tags = canonicalTags(JSON.parse(post.tags_json)); } catch {} const publishedAt = post.remote_created_at || post.created_at; return <article><p className="meta">@{post.username} · {post.remote_display_name || post.name || "Hub"} · {new Date(publishedAt).toLocaleString("zh-TW")}{post.remote_url && <> · <a href={post.remote_url} target="_blank" rel="noreferrer">在 Memos 開啟</a></>}</p><section className="card"><Markdown content={post.content} tags={tags} /></section><Attachments json={post.attachments_json} sourceBaseUrl={post.source_base_url} />
     <section className="row">{reactions.map((reaction: any) => <span className="tag" key={reaction.emoji}>{reaction.emoji} {reaction.count}</span>)}{user && <><form action="/api/bookmarks" method="post"><input type="hidden" name="postId" value={id} /><input type="hidden" name="kind" value="saved" /><button>{bookmark?.kind === "saved" ? "取消收藏" : "收藏"}</button></form><form action="/api/bookmarks" method="post"><input type="hidden" name="postId" value={id} /><input type="hidden" name="kind" value="later" /><button>{bookmark?.kind === "later" ? "取消稍後閱讀" : "稍後閱讀"}</button></form></>}{user && ["👍", "❤️", "🎉", "🤔"].map((emoji) => <form action="/api/reactions" method="post" key={emoji}><input type="hidden" name="postId" value={id} /><input type="hidden" name="emoji" value={emoji} /><button>{emoji}</button></form>)}</section>
     <section><h2>留言</h2>{user ? <><form action="/api/comments" method="post"><input type="hidden" name="postId" value={id} /><textarea name="content" required placeholder="在 Hub 留下留言" /><button>送出留言</button></form><details><summary>檢舉這篇貼文</summary>{query.reported && <p>已收到檢舉，管理員會審核。</p>}<form action="/api/reports" method="post"><input type="hidden" name="postId" value={id} /><label>原因<input name="reason" required minLength={3} maxLength={500} /></label><button className="danger">送出檢舉</button></form></details></> : <p>請先登入以留言、互動或檢舉。</p>}{comments.map((comment) => <div className="card" key={comment.id}><strong>@{comment.username}</strong><p>{comment.content}</p><span className="meta">{new Date(comment.created_at).toLocaleString("zh-TW")}</span></div>)}</section>
   </article>;
diff --git a/app/rss.xml/route.ts b/app/rss.xml/route.ts
index 9970cf5..57e7bd0 100644
--- a/app/rss.xml/route.ts
+++ b/app/rss.xml/route.ts
@@ -2,7 +2,7 @@ import { db } from "@/lib/db";
 
 const escapeXml = (value: string) => value.replace(/[<>&'\"]/g, (char) => ({ "<": "&lt;", ">": "&gt;", "&": "&amp;", "'": "&apos;", '"': "&quot;" }[char] || char));
 export async function GET() {
-  const origin = (process.env.NEXT_PUBLIC_APP_URL || "http://localhost:8088").replace(/\/$/, ""); const posts = db.prepare("SELECT p.id,p.content,p.created_at,u.username FROM posts p JOIN users u ON u.id=p.author_id WHERE p.visibility='PUBLIC' AND p.hidden=0 ORDER BY COALESCE(p.remote_created_at,p.created_at) DESC LIMIT 50").all() as { id: number; content: string; created_at: string; username: string }[];
-  const items = posts.map((post) => `<item><title>${escapeXml(`@${post.username} 的貼文`)}</title><link>${origin}/posts/${post.id}</link><guid>${origin}/posts/${post.id}</guid><description>${escapeXml(post.content.slice(0, 500))}</description><pubDate>${new Date(post.created_at + "Z").toUTCString()}</pubDate></item>`).join("");
+  const origin = (process.env.NEXT_PUBLIC_APP_URL || "http://localhost:8088").replace(/\/$/, ""); const posts = db.prepare("SELECT p.id,p.content,COALESCE(p.remote_created_at,p.created_at) AS published_at,u.username FROM posts p JOIN users u ON u.id=p.author_id WHERE p.visibility='PUBLIC' AND p.hidden=0 ORDER BY COALESCE(p.remote_created_at,p.created_at) DESC LIMIT 50").all() as { id: number; content: string; published_at: string; username: string }[];
+  const items = posts.map((post) => `<item><title>${escapeXml(`@${post.username} 的貼文`)}</title><link>${origin}/posts/${post.id}</link><guid>${origin}/posts/${post.id}</guid><description>${escapeXml(post.content.slice(0, 500))}</description><pubDate>${new Date(post.published_at).toUTCString()}</pubDate></item>`).join("");
   return new Response(`<?xml version="1.0" encoding="UTF-8"?><rss version="2.0"><channel><title>Mebbling</title><link>${origin}</link><description>公開 Memos Hub</description>${items}</channel></rss>`, { headers: { "Content-Type": "application/rss+xml; charset=utf-8", "Cache-Control": "public, max-age=300" } });
 }