diff --git a/app/models/promotion.rb b/app/models/promotion.rb
index 021fda65..d17a39b0 100644
--- a/app/models/promotion.rb
+++ b/app/models/promotion.rb
@@ -23,7 +23,7 @@ class Promotion < ApplicationRecord
   end
 
   def self.is_between_promo_datetime(current_day,current_time) #database is not local time
-    promoList = Promotion.where("(Date_Format(promo_start_date, 'YYYY-MM-DD') <=? AND Date_Format(promo_end_date, 'YYYY-MM-DD') >=?) AND (promo_start_hour < ? AND promo_end_hour > ?)", current_day, current_day, current_time, current_time)
+    promoList = Promotion.where("(Date_Format(promo_start_date, '%Y-%m-%d') <=? AND Date_Format(promo_end_date, '%Y-%m-%d') >=?) AND (promo_start_hour < ? AND promo_end_hour > ?)", current_day, current_day, current_time, current_time)
     return promoList
   end