Index: src/wp-admin/edit-form-advanced.php
===================================================================
--- src/wp-admin/edit-form-advanced.php	(revision 31279)
+++ src/wp-admin/edit-form-advanced.php	(working copy)
@@ -84,7 +84,7 @@
 	 8 => sprintf( __('Post submitted. <a target="_blank" href="%s">Preview post</a>'), esc_url( add_query_arg( 'preview', 'true', $permalink ) ) ),
 	 9 => sprintf( __('Post scheduled for: <strong>%1$s</strong>. <a target="_blank" href="%2$s">Preview post</a>'),
 		/* translators: Publish box date format, see http://php.net/date */
-		date_i18n( __( 'M j, Y @ G:i' ), strtotime( $post->post_date ) ), esc_url( $permalink ) ),
+		date_i18n( __( 'M j, Y @ H:i' ), strtotime( $post->post_date ) ), esc_url( $permalink ) ),
 	10 => sprintf( __('Post draft updated. <a target="_blank" href="%s">Preview post</a>'), esc_url( add_query_arg( 'preview', 'true', $permalink ) ) ),
 );
 $messages['page'] = array(
@@ -97,7 +97,7 @@
 	 6 => sprintf( __('Page published. <a href="%s">View page</a>'), esc_url( $permalink ) ),
 	 7 => __('Page saved.'),
 	 8 => sprintf( __('Page submitted. <a target="_blank" href="%s">Preview page</a>'), esc_url( add_query_arg( 'preview', 'true', $permalink ) ) ),
-	 9 => sprintf( __('Page scheduled for: <strong>%1$s</strong>. <a target="_blank" href="%2$s">Preview page</a>'), date_i18n( __( 'M j, Y @ G:i' ), strtotime( $post->post_date ) ), esc_url( $permalink ) ),
+	 9 => sprintf( __('Page scheduled for: <strong>%1$s</strong>. <a target="_blank" href="%2$s">Preview page</a>'), date_i18n( __( 'M j, Y @ H:i' ), strtotime( $post->post_date ) ), esc_url( $permalink ) ),
 	10 => sprintf( __('Page draft updated. <a target="_blank" href="%s">Preview page</a>'), esc_url( add_query_arg( 'preview', 'true', $permalink ) ) ),
 );
 $messages['attachment'] = array_fill( 1, 10, __( 'Media attachment updated.' ) ); // Hack, for now.
Index: src/wp-admin/edit-form-comment.php
===================================================================
--- src/wp-admin/edit-form-comment.php	(revision 31279)
+++ src/wp-admin/edit-form-comment.php	(working copy)
@@ -101,7 +101,7 @@
 <div class="misc-pub-section curtime misc-pub-curtime">
 <?php
 /* translators: Publish box date format, see http://php.net/date */
-$datef = __( 'M j, Y @ G:i' );
+$datef = __( 'M j, Y @ H:i' );
 $stamp = __('Submitted on: <b>%1$s</b>');
 $date = date_i18n( $datef, strtotime( $comment->comment_date ) );
 ?>
Index: src/wp-admin/includes/class-wp-comments-list-table.php
===================================================================
--- src/wp-admin/includes/class-wp-comments-list-table.php	(revision 31279)
+++ src/wp-admin/includes/class-wp-comments-list-table.php	(working copy)
@@ -542,7 +542,7 @@
 	}
 
 	public function column_date() {
-		return get_comment_date( __( 'Y/m/d \a\t g:ia' ) );
+		return get_comment_date( __( 'Y/m/d \a\t g:i a' ) );
 	}
 
 	public function column_response() {
Index: src/wp-admin/includes/class-wp-plugin-install-list-table.php
===================================================================
--- src/wp-admin/includes/class-wp-plugin-install-list-table.php	(revision 31279)
+++ src/wp-admin/includes/class-wp-plugin-install-list-table.php	(working copy)
@@ -446,7 +446,7 @@
 			 */
 			$action_links = apply_filters( 'plugin_install_action_links', $action_links, $plugin );
 
-			$date_format = __( 'M j, Y @ G:i' );
+			$date_format = __( 'M j, Y @ H:i' );
 			$last_updated_timestamp = strtotime( $plugin['last_updated'] );
 		?>
 		<div class="plugin-card">
Index: src/wp-admin/includes/class-wp-posts-list-table.php
===================================================================
--- src/wp-admin/includes/class-wp-posts-list-table.php	(revision 31279)
+++ src/wp-admin/includes/class-wp-posts-list-table.php	(working copy)
@@ -762,7 +762,7 @@
 					$t_time = $h_time = __( 'Unpublished' );
 					$time_diff = 0;
 				} else {
-					$t_time = get_the_time( __( 'Y/m/d g:i:s A' ) );
+					$t_time = get_the_time( __( 'Y/m/d g:i:s a' ) );
 					$m_time = $post->post_date;
 					$time = get_post_time( 'G', true, $post );
 
Index: src/wp-admin/includes/meta-boxes.php
===================================================================
--- src/wp-admin/includes/meta-boxes.php	(revision 31279)
+++ src/wp-admin/includes/meta-boxes.php	(working copy)
@@ -162,7 +162,7 @@
 
 <?php
 /* translators: Publish box date format, see http://php.net/date */
-$datef = __( 'M j, Y @ G:i' );
+$datef = __( 'M j, Y @ H:i' );
 if ( 0 != $post->ID ) {
 	if ( 'future' == $post->post_status ) { // scheduled for publishing at a future date
 		$stamp = __('Scheduled for: <b>%1$s</b>');
@@ -293,7 +293,7 @@
 <div id="misc-publishing-actions">
 	<?php
 	/* translators: Publish box date format, see http://php.net/date */
-	$datef = __( 'M j, Y @ G:i' );
+	$datef = __( 'M j, Y @ H:i' );
 	$stamp = __('Uploaded on: <b>%1$s</b>');
 	$date = date_i18n( $datef, strtotime( $post->post_date ) );
 	?>
Index: src/wp-admin/includes/plugin-install.php
===================================================================
--- src/wp-admin/includes/plugin-install.php	(revision 31279)
+++ src/wp-admin/includes/plugin-install.php	(working copy)
@@ -439,7 +439,7 @@
 
 	echo "</div>\n";
 
-	$date_format = __( 'M j, Y @ G:i' );
+	$date_format = __( 'M j, Y @ H:i' );
 	$last_updated_timestamp = strtotime( $api->last_updated );
 	?>
 	<div id="<?php echo $_tab; ?>-content" class='<?php echo $_with_banner; ?>'>
Index: src/wp-admin/includes/revision.php
===================================================================
--- src/wp-admin/includes/revision.php	(revision 31279)
+++ src/wp-admin/includes/revision.php	(working copy)
@@ -203,8 +203,8 @@
 			'id'         => $revision->ID,
 			'title'      => get_the_title( $post->ID ),
 			'author'     => $authors[ $revision->post_author ],
-			'date'       => date_i18n( __( 'M j, Y @ G:i' ), $modified ),
-			'dateShort'  => date_i18n( _x( 'j M @ G:i', 'revision date short format' ), $modified ),
+			'date'       => date_i18n( __( 'M j, Y @ H:i' ), $modified ),
+			'dateShort'  => date_i18n( _x( 'j M @ H:i', 'revision date short format' ), $modified ),
 			'timeAgo'    => sprintf( __( '%s ago' ), human_time_diff( $modified_gmt, $now_gmt ) ),
 			'autosave'   => $autosave,
 			'current'    => $current,
@@ -221,8 +221,8 @@
 			'id'         => $post->ID,
 			'title'      => get_the_title( $post->ID ),
 			'author'     => $authors[ $post->post_author ],
-			'date'       => date_i18n( __( 'M j, Y @ G:i' ), strtotime( $post->post_modified ) ),
-			'dateShort'  => date_i18n( _x( 'j M @ G:i', 'revision date short format' ), strtotime( $post->post_modified ) ),
+			'date'       => date_i18n( __( 'M j, Y @ H:i' ), strtotime( $post->post_modified ) ),
+			'dateShort'  => date_i18n( _x( 'j M @ H:i', 'revision date short format' ), strtotime( $post->post_modified ) ),
 			'timeAgo'    => sprintf( __( '%s ago' ), human_time_diff( strtotime( $post->post_modified_gmt ), $now_gmt ) ),
 			'autosave'   => false,
 			'current'    => true,
Index: src/wp-admin/options-general.php
===================================================================
--- src/wp-admin/options-general.php	(revision 31279)
+++ src/wp-admin/options-general.php	(working copy)
@@ -18,7 +18,7 @@
 $title = __('General Settings');
 $parent_file = 'options-general.php';
 /* translators: date and time format for exact current time, mainly about timezones, see http://php.net/date */
-$timezone_format = _x('Y-m-d G:i:s', 'timezone date format');
+$timezone_format = _x('Y-m-d H:i:s', 'timezone date format');
 
 /**
  * Display JavaScript on the page.
Index: src/wp-includes/post-template.php
===================================================================
--- src/wp-includes/post-template.php	(revision 31279)
+++ src/wp-includes/post-template.php	(working copy)
@@ -1659,7 +1659,7 @@
 		return false;
 
 	/* translators: revision date format, see http://php.net/date */
-	$datef = _x( 'j F, Y @ G:i', 'revision date format');
+	$datef = _x( 'F j, Y @ H:i', 'revision date format');
 	/* translators: 1: date */
 	$autosavef = _x( '%1$s [Autosave]', 'post revision title extra' );
 	/* translators: 1: date */
@@ -1695,7 +1695,7 @@
 
 	$author = get_the_author_meta( 'display_name', $revision->post_author );
 	/* translators: revision date format, see http://php.net/date */
-	$datef = _x( 'j F, Y @ G:i:s', 'revision date format');
+	$datef = _x( 'F j, Y @ H:i:s', 'revision date format');
 
 	$gravatar = get_avatar( $revision->post_author, 24 );