diff --git a/packages/theme/src/node/autoFrontmatter.ts b/packages/theme/src/node/autoFrontmatter.ts
index d12a1bda..df92a528 100644
--- a/packages/theme/src/node/autoFrontmatter.ts
+++ b/packages/theme/src/node/autoFrontmatter.ts
@@ -53,7 +53,7 @@ export default function autoFrontmatter(
     },
     createTime(formatTime: string, { createTime }) {
       if (formatTime) return formatTime
-      return format(new Date(createTime), 'yyyy/MM/dd hh:mm:ss')
+      return format(new Date(createTime), 'yyyy/MM/dd HH:mm:ss')
     },
   }