diff --git a/src/wp-admin/includes/meta-boxes.php b/src/wp-admin/includes/meta-boxes.php
index cff73e11f2..52aaac078d 100644
--- a/src/wp-admin/includes/meta-boxes.php
+++ b/src/wp-admin/includes/meta-boxes.php
@@ -363,18 +363,19 @@ function attachment_submit_meta_box( $post ) {
 <div id="misc-publishing-actions">
 	<div class="misc-pub-section curtime misc-pub-curtime">
 		<span id="timestamp">
-		<?php
-			$date = date_i18n(
-				/* translators: Publish box date format, see https://secure.php.net/date */
-				__( 'M j, Y @ H:i' ),
-				strtotime( $post->post_date )
+			<?php
+			$uploaded_on = sprintf(
+				/* translators: 1: comment date, 2: comment time */
+				__( '%1$s at %2$s' ),
+				date_i18n( _x( 'M j, Y', 'edit attachment uploaded-on date format. See https://secure.php.net/date' ), strtotime( $post->post_date ) ),
+				date_i18n( _x( 'H:i', 'edit attachment submitted-on time format. See https://secure.php.net/date' ), strtotime( $post->post_date ) )
 			);
 			printf(
-				/* translators: Attachment information. %s: Date the attachment was uploaded. */
+				/* translators: Attachment information. %s: Date the attachment was uploaded */
 				__( 'Uploaded on: %s' ),
-				'<b>' . $date . '</b>'
+				'<b>' . $uploaded_on . '</b>'
 			);
-		?>
+			?>
 		</span>
 	</div><!-- .misc-pub-section -->