diff --git a/includes/functions/_service-posts.php b/includes/functions/_service-posts.php
index b14988b1..46a7d11a 100644
--- a/includes/functions/_service-posts.php
+++ b/includes/functions/_service-posts.php
@@ -372,7 +372,7 @@ function fictioneer_chapter_future_to_publish( $new_status, $old_status, $post )
   $story_id = get_post_meta( $post->ID, 'fictioneer_chapter_story', true );
 
   if ( $story_id ) {
-    update_post_meta( $story_id, 'fictioneer_chapters_added', $post->post_date );
+    update_post_meta( $story_id, 'fictioneer_chapters_added', $post->post_date_gmt );
   }
 }
 add_action( 'transition_post_status', 'fictioneer_chapter_future_to_publish', 10, 3 );
diff --git a/includes/functions/_setup-meta-fields.php b/includes/functions/_setup-meta-fields.php
index b552ec43..9a73ed8c 100644
--- a/includes/functions/_setup-meta-fields.php
+++ b/includes/functions/_setup-meta-fields.php
@@ -2413,7 +2413,7 @@ function fictioneer_save_story_metaboxes( $post_id ) {
     }
 
     if ( count( $previous_chapter_ids ) < count( $chapter_ids ) ) {
-      update_post_meta( $post_id, 'fictioneer_chapters_added', current_time( 'mysql' ) );
+      update_post_meta( $post_id, 'fictioneer_chapters_added', current_time( 'mysql', true ) );
     }
 
     // Log changes
diff --git a/includes/functions/_utility.php b/includes/functions/_utility.php
index 7f082e98..bf3ae947 100644
--- a/includes/functions/_utility.php
+++ b/includes/functions/_utility.php
@@ -1278,7 +1278,7 @@ function fictioneer_append_chapter_to_story( $post_id, $story_id, $force = false
 
     // Remember when chapter list has been last updated
     update_post_meta( $story_id, 'fictioneer_chapters_modified', current_time( 'mysql' ) );
-    update_post_meta( $story_id, 'fictioneer_chapters_added', current_time( 'mysql' ) );
+    update_post_meta( $story_id, 'fictioneer_chapters_added', current_time( 'mysql', true ) );
 
     // Log changes
     fictioneer_log_story_chapter_changes( $story_id, $story_chapters, $previous_chapters );
diff --git a/includes/functions/settings/_settings_actions.php b/includes/functions/settings/_settings_actions.php
index 3c27de81..672d1bb2 100644
--- a/includes/functions/settings/_settings_actions.php
+++ b/includes/functions/settings/_settings_actions.php
@@ -1601,7 +1601,7 @@ function fictioneer_tools_append_chapters() {
 
       // Remember when chapter list has been last updated
       update_post_meta( $story_id, 'fictioneer_chapters_modified', current_time( 'mysql' ) );
-      update_post_meta( $story_id, 'fictioneer_chapters_added', current_time( 'mysql' ) );
+      update_post_meta( $story_id, 'fictioneer_chapters_added', current_time( 'mysql', true ) );
 
       // Clear meta caches to ensure they get refreshed
       delete_post_meta( $story_id, 'fictioneer_story_data_collection' );