diff --git a/1-js/05-data-types/11-date/article.md b/1-js/05-data-types/11-date/article.md
index a3117806..ed4e2135 100644
--- a/1-js/05-data-types/11-date/article.md
+++ b/1-js/05-data-types/11-date/article.md
@@ -348,7 +348,7 @@ let time1 = 0;
 let time2 = 0;
 
 *!*
-// run bench(upperSlice) and bench(upperLoop) each 10 times alternating
+// run bench(diffSubtract) and bench(diffGetTime) each 10 times alternating
 for (let i = 0; i < 10; i++) {
   time1 += bench(diffSubtract);
   time2 += bench(diffGetTime);