diff --git a/app/router.php b/app/router.php
index d5345b2..ceaa25c 100644
--- a/app/router.php
+++ b/app/router.php
@@ -133,7 +133,14 @@ switch ($parsedPath['type']) {
                 // Let plugins format date
                 $date = Hooks::apply(Hook::PROCESS_CONTENT, $date, 'date_format');
             } else {
-                $date = extractDateFromFolder($item) ?: date("F d, Y", filemtime($itemPath));
+                $extractedDate = extractDateFromFolder($item);
+                if ($extractedDate) {
+                    $date = $extractedDate;
+                } else {
+                    // Convert timestamp to ISO format and let plugins format it
+                    $isoDate = date("Y-m-d", filemtime($itemPath));
+                    $date = Hooks::apply(Hook::PROCESS_CONTENT, $isoDate, 'date_format');
+                }
             }
 
             // Use slug if available