diff --git a/package.json b/package.json
index 896b2d1..c4ff91f 100644
--- a/package.json
+++ b/package.json
@@ -7,6 +7,7 @@
     "react": "^19.0.0",
     "react-dom": "^19.0.0",
     "swr": "^2.3.3",
+    "temporal-polyfill": "^0.3.0",
     "uuid": "^11.1.0",
     "valibot": "^1.1.0"
   },
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 400f85d..3bef106 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -29,6 +29,9 @@ importers:
       swr:
         specifier: ^2.3.3
         version: 2.3.5(react@19.1.1)
+      temporal-polyfill:
+        specifier: ^0.3.0
+        version: 0.3.0
       uuid:
         specifier: ^11.1.0
         version: 11.1.0
@@ -803,6 +806,12 @@ packages:
   symbol-tree@3.2.4:
     resolution: {integrity: sha512-9QNk5KwDF+Bvz+PyObkmSYjI5ksVUYtjW7AU22r2NKcfLJcXp96hkDWU3+XndOsUb+AQ9QhfzfCT2O+CNWT5Tw==}
 
+  temporal-polyfill@0.3.0:
+    resolution: {integrity: sha512-qNsTkX9K8hi+FHDfHmf22e/OGuXmfBm9RqNismxBrnSmZVJKegQ+HYYXT+R7Ha8F/YSm2Y34vmzD4cxMu2u95g==}
+
+  temporal-spec@0.3.0:
+    resolution: {integrity: sha512-n+noVpIqz4hYgFSMOSiINNOUOMFtV5cZQNCmmszA6GiVFVRt3G7AqVyhXjhCSmowvQn+NsGn+jMDMKJYHd3bSQ==}
+
   tldts-core@6.1.86:
     resolution: {integrity: sha512-Je6p7pkk+KMzMv2XXKmAE3McmolOQFdxkKw0R8EYNr7sELW46JqnNeTX8ybPiQgvg1ymCoF8LXs5fzFaZvJPTA==}
 
@@ -1769,6 +1778,12 @@ snapshots:
 
   symbol-tree@3.2.4: {}
 
+  temporal-polyfill@0.3.0:
+    dependencies:
+      temporal-spec: 0.3.0
+
+  temporal-spec@0.3.0: {}
+
   tldts-core@6.1.86: {}
 
   tldts@6.1.86:
diff --git a/src/app/List.tsx b/src/app/List.tsx
index 3db41d0..36fd430 100644
--- a/src/app/List.tsx
+++ b/src/app/List.tsx
@@ -10,6 +10,7 @@ import { Section } from "@colonydb/anthill/Section";
 import { Stack } from "@colonydb/anthill/Stack";
 import { type ReactNode, useEffect, useState } from "react";
 import useSWR from "swr/immutable";
+import { Temporal } from "temporal-polyfill";
 import type { ListConfig, ListResult } from ".";
 
 type Props = {
@@ -68,7 +69,20 @@ const List = ({
       headingLevel={2}
       spacing="00"
       title={
-        <Header actions={actions}>
+        <Header
+          actions={actions}
+          description={
+            data ? (
+              <PlainText font="small" color={["gray-s1", "gray-t1"]}>
+                Updated:{" "}
+                {Temporal.Instant.from(data?.fetchedAt).toLocaleString(undefined, {
+                  timeStyle: "long",
+                  dateStyle: "medium",
+                })}
+              </PlainText>
+            ) : null
+          }
+        >
           <Heading>
             <Link href={url}>{name}</Link>
           </Heading>
diff --git a/src/app/api/route.ts b/src/app/api/route.ts
index c96197e..e92a320 100644
--- a/src/app/api/route.ts
+++ b/src/app/api/route.ts
@@ -1,4 +1,5 @@
 import { JSDOM, VirtualConsole } from "jsdom";
+import { toTemporalInstant } from "temporal-polyfill";
 import type { ListResult } from "..";
 
 export const GET = async (request: Request) => {
@@ -27,6 +28,10 @@ export const GET = async (request: Request) => {
 
   if (response.ok === false) throw Error("Failed to fetch URL");
 
+  const dateHeader = response.headers.get("date");
+
+  const instant = toTemporalInstant.apply(dateHeader ? new Date(dateHeader) : new Date(Date.now()));
+
   const html = await response.text();
 
   const dom = await createDOM(html, url);
@@ -38,13 +43,14 @@ export const GET = async (request: Request) => {
   const items = selectAll(dom.window.document, itemSelector);
 
   const result: ListResult = {
-    items: [],
     debug: {
       firstLink: undefined,
       firstTitle: undefined,
       itemsAfterFilter: 0,
       itemsFound: items.length,
     },
+    fetchedAt: instant.toString(),
+    items: [],
   };
 
   for (const item of items ?? []) {
diff --git a/src/app/index.ts b/src/app/index.ts
index 6e96f84..98c60fb 100644
--- a/src/app/index.ts
+++ b/src/app/index.ts
@@ -10,11 +10,12 @@ export type ListConfig = {
 };
 
 export type ListResult = {
-  items: Array<{ title: string; url: string | undefined }>;
   debug: {
     itemsFound: number;
     itemsAfterFilter: number;
     firstTitle: string | undefined;
     firstLink: string | undefined;
   };
+  fetchedAt: string;
+  items: Array<{ title: string; url: string | undefined }>;
 };