Fixed RSS date/time

src/pages/rss.xml.js

@@ -1,6 +1,38 @@
 import rss from '@astrojs/rss';
 import { getCollection } from 'astro:content';
 
+function formatPubDate(date) {
+  const timezone = process.env.PUBLIC_RSS_TIMEZONE
+    ? process.env.PUBLIC_RSS_TIMEZONE
+    : import.meta.env.PUBLIC_RSS_TIMEZONE;
+  
+  if (!timezone) {
+    return date;
+  }
+  
+  try {
+    const year = date.getUTCFullYear();
+    const month = String(date.getUTCMonth() + 1).padStart(2, '0');
+    const day = String(date.getUTCDate()).padStart(2, '0');
+    
+    const formatter = new Intl.DateTimeFormat('en-US', {
+      timeZone: timezone,
+      timeZoneName: 'longOffset',
+    });
+
+    const parts = formatter.formatToParts(date);
+    const offsetPart = parts.find(p => p.type === 'timeZoneName');
+    const offset = offsetPart ? offsetPart.value.replace('GMT', '') : '+00:00';
+
+    const dateStr = `${year}-${month}-${day}T00:00:00${offset}`;
+    
+    return new Date(dateStr);
+  } catch (e) {
+    console.warn(`Invalid timezone "${timezone}":`, e.message);
+    return date;
+  }
+}
+
 export async function GET(context) {
   const posts = await getCollection('posts');
   
@@ -10,7 +42,7 @@ export async function GET(context) {
     site: context.site,
     items: posts.map((post) => ({
       title: post.data.title,
-      pubDate: post.data.pubDate,
+      pubDate: formatPubDate(post.data.pubDate),
       description: post.data.description || '',
       link: `/post/${post.slug}/`,
     })),