diff --git a/server/model/status_page.js b/server/model/status_page.js
index 24ec16dba..3f18e043c 100644
--- a/server/model/status_page.js
+++ b/server/model/status_page.js
@@ -7,6 +7,7 @@ const analytics = require("../analytics/analytics");
 const { marked } = require("marked");
 const { Feed } = require("feed");
 const config = require("../config");
+const dayjs = require("dayjs");
 
 const { setting } = require("../util-server");
 const {
@@ -100,7 +101,7 @@ class StatusPage extends BeanModel {
                 description: `${heartbeat.name} has been down since ${heartbeat.time} UTC`,
                 id: `${heartbeat.monitorID}-${heartbeat.time}`,
                 link: feedUrl,
-                date: new Date(heartbeat.time),
+                date: dayjs.utc(heartbeat.time).toDate(),
             });
         });
 
diff --git a/test/backend-test/test-status-page.js b/test/backend-test/test-status-page.js
index a8b959447..ff838d661 100644
--- a/test/backend-test/test-status-page.js
+++ b/test/backend-test/test-status-page.js
@@ -1,6 +1,8 @@
-const { describe, test } = require("node:test");
+const { describe, test, mock } = require("node:test");
 const assert = require("node:assert");
 const StatusPage = require("../../server/model/status_page");
+const dayjs = require("dayjs");
+const utc = require("dayjs/plugin/utc");
 const {
     STATUS_PAGE_ALL_UP,
     STATUS_PAGE_ALL_DOWN,
@@ -8,6 +10,8 @@ const {
     STATUS_PAGE_MAINTENANCE,
 } = require("../../src/util");
 
+dayjs.extend(utc);
+
 describe("StatusPage", () => {
     describe("getStatusDescription()", () => {
         test("returns 'No Services' when status is -1", () => {
@@ -40,4 +44,35 @@ describe("StatusPage", () => {
             assert.strictEqual(description, "?");
         });
     });
+
+    describe("renderRSS()", () => {
+        const MOCK_FEED_URL = "http://localhost:3001/status/test";
+
+        test("pubDate uses UTC timezone for heartbeat.time without timezone info", async () => {
+            const mockStatusPage = {
+                title: "Test Status Page",
+            };
+
+            const mockHeartbeats = [
+                {
+                    name: "Test Monitor",
+                    monitorID: 1,
+                    time: "2026-01-24 13:16:25.400",
+                },
+            ];
+
+            mock.method(StatusPage, "getRSSPageData", async () => ({
+                heartbeats: mockHeartbeats,
+                statusDescription: "All Systems Operational",
+            }));
+
+            try {
+                const rss = await StatusPage.renderRSS(mockStatusPage, MOCK_FEED_URL);
+
+                assert.ok(rss.includes("<pubDate>Sat, 24 Jan 2026 13:16:25 GMT</pubDate>"));
+            } finally {
+                mock.restoreAll();
+            }
+        });
+    });
 });