diff --git a/wp-admin/update-core.php b/wp-admin/update-core.php
index 4aaa0bf725..ea9df4eeba 100644
--- a/wp-admin/update-core.php
+++ b/wp-admin/update-core.php
@@ -1046,7 +1046,7 @@ if ( 'upgrade-core' === $action ) {
 
 	echo '<p class="update-last-checked">';
 	/* translators: 1: Date, 2: Time. */
-	printf( __( 'Last checked on %1$s at %2$s.' ), date_i18n( __( 'F j, Y' ), $last_update_check ), date_i18n( __( 'g:i a' ), $last_update_check ) );
+	printf( __( 'Last checked on %1$s at %2$s.' ), date_i18n( __( 'F j, Y' ), $last_update_check ), date_i18n( __( 'g:i a T' ), $last_update_check ) );
 	echo ' <a href="' . esc_url( self_admin_url( 'update-core.php?force-check=1' ) ) . '">' . __( 'Check again.' ) . '</a>';
 	echo '</p>';
 
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 4292dd31e5..7cc9d3b16b 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.9-alpha-52202';
+$wp_version = '5.9-alpha-52203';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.