diff --git src/wp-content/themes/twentyfifteen/style.css src/wp-content/themes/twentyfifteen/style.css
index 255d1a2b0a..079e6aee86 100644
--- src/wp-content/themes/twentyfifteen/style.css
+++ src/wp-content/themes/twentyfifteen/style.css
@@ -2438,6 +2438,13 @@ a.post-thumbnail:focus {
 	text-transform: none;
 }
 
+/**
+* Calendar block css for front end
+*/
+.wp-block-calendar table th, .wp-block-calendar table td{
+	text-align:center
+}
+
 /**
  * 13.0 Footer
  */