diff --git a/src/pages/rss.xml.ts b/src/pages/rss.xml.ts
index 1166c7b..262f09a 100644
--- a/src/pages/rss.xml.ts
+++ b/src/pages/rss.xml.ts
@@ -1,6 +1,6 @@
 import { getAllPosts } from "@/data/post";
 import { siteConfig } from "@/site.config";
-import { collectionDateSort, convertToBeijingTime } from "@/utils/date";
+import { collectionDateSort, convertToGMT } from "@/utils/date";
 import rss from "@astrojs/rss";
 import MarkdownIt from "markdown-it";
 import sanitizeHtml from "sanitize-html";
@@ -25,7 +25,7 @@ export const GET = async () => {
 			return {
 				title: post.data.title,
 				description: (post.data.description ?? "") + "\t" + tagStr,
-				pubDate: convertToBeijingTime(post.dateToCmp),
+				pubDate: convertToGMT(post.dateToCmp),
 				link: `posts/${post.id}/`,
 				content: post.body
 					? sanitizeHtml(
diff --git a/src/utils/date.ts b/src/utils/date.ts
index ff52838..e30f966 100644
--- a/src/utils/date.ts
+++ b/src/utils/date.ts
@@ -24,17 +24,7 @@ export function getLatestUpdatedPost(a: AllItem, b: AllItem) {
 	return getDateSortByUpdateTime(b).getTime() - getDateSortByUpdateTime(a).getTime();
 }
 
-export function convertToBeijingTime(date: Date) {
-	const options = {
-		timeZone: "Asia/Shanghai",
-		year: "numeric",
-		month: "2-digit",
-		day: "2-digit",
-		hour: "2-digit",
-		minute: "2-digit",
-		second: "2-digit",
-	};
-	const formatter = new Intl.DateTimeFormat("zh-CN", options as Intl.DateTimeFormatOptions);
-	const formattedDate = formatter.format(date);
-	return formattedDate;
+export function convertToGMT(date: Date) {
+	// Subtract 8 hours to convert Beijing time to GMT
+	return new Date(date.getTime() - 8 * 60 * 60 * 1000);
 }