diff --git a/src/routes/+layout.server.ts b/src/routes/+layout.server.ts
index 9fc531f..0ddf7eb 100644
--- a/src/routes/+layout.server.ts
+++ b/src/routes/+layout.server.ts
@@ -17,7 +17,8 @@ export const load: LayoutServerLoad = async ({ platform }) => {
 		title: 'BlogFlare',
 		description: 'A high-performance blog powered by Cloudflare D1, R2, and KV.',
 		avatar_enabled: 'true',
-		avatar_url: ''
+		avatar_url: '',
+		launch_date: ''
 	};
 
 	if (db) {
diff --git a/src/routes/+layout.svelte b/src/routes/+layout.svelte
index 590b196..e2d12bd 100644
--- a/src/routes/+layout.svelte
+++ b/src/routes/+layout.svelte
@@ -7,6 +7,18 @@
 	import { page } from '$app/stores';
 
 	let scrolled = $state(false);
+	let uptimeText = $state('');
+
+	function calcUptime(launchDate: string): string {
+		if (!launchDate) return '';
+		const start = new Date(launchDate).getTime();
+		const diff = Date.now() - start;
+		if (diff < 0) return '';
+		const days = Math.floor(diff / 86400000);
+		const hours = Math.floor((diff % 86400000) / 3600000);
+		const minutes = Math.floor((diff % 3600000) / 60000);
+		return `${days} 天 ${hours} 小时 ${minutes} 分钟`;
+	}
 
 	onMount(() => {
 		const handleScroll = () => {
@@ -14,8 +26,16 @@
 		};
 		window.addEventListener('scroll', handleScroll);
 
+		// 初始化建站时长
+		const launchDate = $page.data.site?.launch_date || '';
+		uptimeText = calcUptime(launchDate);
+		const timer = setInterval(() => {
+			uptimeText = calcUptime(launchDate);
+		}, 60000);
+
 		return () => {
 			window.removeEventListener('scroll', handleScroll);
+			clearInterval(timer);
 		};
 	});
 
@@ -96,7 +116,9 @@
 						© {new Date().getFullYear()}
 						<span class="brand">{$page.data.site?.title || 'BlogFlare'}</span>
 					</p>
-					<p>感谢陪伴：<span id="uptime"></span></p>
+					{#if uptimeText}
+						<p>感谢陪伴：{uptimeText}</p>
+					{/if}
 				</section>
 				<section>
 					<p>
diff --git a/src/routes/admin/settings/+page.server.ts b/src/routes/admin/settings/+page.server.ts
index 2bf031b..5122f92 100644
--- a/src/routes/admin/settings/+page.server.ts
+++ b/src/routes/admin/settings/+page.server.ts
@@ -42,6 +42,10 @@ export const actions: Actions = {
 			{
 				key: 'r2.public_domain',
 				value: data.get('r2_public_domain')?.toString() || 'https://assets.yourdomain.com'
+			},
+			{
+				key: 'site.launch_date',
+				value: data.get('site_launch_date')?.toString() || ''
 			}
 		];
 
diff --git a/src/routes/admin/settings/+page.svelte b/src/routes/admin/settings/+page.svelte
index 0bad080..32e5384 100644
--- a/src/routes/admin/settings/+page.svelte
+++ b/src/routes/admin/settings/+page.svelte
@@ -85,6 +85,16 @@
 						/>
 						<small class="form-hint">请确保不要以斜杠 / 结尾</small>
 					</div>
+					<div class="form-group">
+						<label for="site_launch_date">建站日期</label>
+						<input
+							type="date"
+							id="site_launch_date"
+							name="site_launch_date"
+							value={data.settings['site.launch_date'] || ''}
+						/>
+						<small class="form-hint">用于在底栏显示"感谢陪伴 X 天 X 小时"</small>
+					</div>
 				</div>
 
 				<div class="form-actions">