diff --git a/_config.yml b/_config.yml
index f303536..cb99769 100644
--- a/_config.yml
+++ b/_config.yml
@@ -25,4 +25,8 @@ gh_edit_repository: "https://github.com/biosplus/goroma"
 gh_edit_branch: "main"
 
 back_to_top: true
-back_to_top_text: "Back to top"
\ No newline at end of file
+back_to_top_text: "Back to top"
+
+# Last Modified info
+last_edit_timestamp: true # show or hide edit time - page must have `last_modified_date` defined in the frontmatter
+last_edit_time_format: "%b %e %Y at %I:%M %p" # uses ruby's time format: https://ruby-doc.org/stdlib-2.7.0/libdoc/time/rdoc/Time.html
\ No newline at end of file