diff --git a/package.json b/package.json
index b4d3557..37e2469 100644
--- a/package.json
+++ b/package.json
@@ -3,10 +3,10 @@
   "type": "module",
   "version": "0.0.1",
   "scripts": {
-    "dev": "astro dev",
-    "build": "astro build",
-    "preview": "astro preview",
-    "astro": "astro"
+    "dev": "TZ=etc/UTC astro dev",
+    "build": "TZ=etc/UTC astro build",
+    "preview": "TZ=etc/UTC astro preview",
+    "astro": "TZ=etc/UTC astro"
   },
   "dependencies": {
     "@astrojs/mdx": "^4.0.2",
diff --git a/src/pages/blog/[...slug].astro b/src/pages/blog/[...slug].astro
index df8bbac..16dafc0 100644
--- a/src/pages/blog/[...slug].astro
+++ b/src/pages/blog/[...slug].astro
@@ -24,7 +24,7 @@ const { Content } = await render(post);
       <div>
         {
           post.data.date ? (
-            <p>Published on {format(post.data.date, "yyyy-mm-dd")}</p>
+            <p>Published on {format(post.data.date, "yyyy-MM-dd")}</p>
           ) : null
         }
       </div>