diff --git a/app/helpers/exercises_helper.rb b/app/helpers/exercises_helper.rb
index 67eb373ef..478b38204 100644
--- a/app/helpers/exercises_helper.rb
+++ b/app/helpers/exercises_helper.rb
@@ -326,9 +326,9 @@ module ExercisesHelper
 
     if exercise_status == 2 && exercise_end_time.present?
       ex_left_time = how_much_time(exercise_end_time)
-    elsif exercise_status == 3 && course.end_date.present?
-      ex_left_time = how_much_time(course.end_date.to_time)
-    else
+    # elsif exercise_status == 3 && course.end_date.present?
+    #   ex_left_time = how_much_time(course.end_date.to_time)
+    else  #已截止后不显示时间
       ex_left_time = nil
     end