Index: src/wp-includes/script-loader.php
===================================================================
--- src/wp-includes/script-loader.php	(revision 43826)
+++ src/wp-includes/script-loader.php	(working copy)
@@ -408,9 +408,13 @@
 						),
 					),
 					'formats'  => array(
+						/* translators: Time format, see https://secure.php.net/date */
 						'time'                => get_option( 'time_format', __( 'g:i a', 'default' ) ),
+						/* translators: Date format, see https://secure.php.net/date */
 						'date'                => get_option( 'date_format', __( 'F j, Y', 'default' ) ),
+						/* translators: Date/Time format, see https://secure.php.net/date */
 						'datetime'            => __( 'F j, Y g:i a', 'default' ),
+						/* translators: Abbreviated date/time format, see https://secure.php.net/date */
 						'datetimeAbbreviated' => __( 'M j, Y g:i a', 'default' ),
 					),
 					'timezone' => array(