diff --git a/lib/tasks/get_video_data.rake b/lib/tasks/get_video_data.rake
index 56af0a192..7fd363e31 100644
--- a/lib/tasks/get_video_data.rake
+++ b/lib/tasks/get_video_data.rake
@@ -33,8 +33,8 @@ namespace :video do
   task :sample => :environment do
     if ENV['args']
       video_id = ENV['args'].split(",")[0]
-      start_time = ENV['args'].split(",")[1].to_s.to_time.utc.strftime('%Y-%m-%dT%H:%M:%SZ') # 表示参与人数
-      end_time = ENV['args'].split(",")[2].to_s.to_time.utc.strftime('%Y-%m-%dT%H:%M:%SZ') # 表示通过人数
+      start_time = ENV['args'].split(",")[1].to_s.to_time.utc # 表示参与人数
+      end_time = ENV['args'].split(",")[2].to_s.to_time.utc # 表示通过人数
 
       video=Video.find video_id
       data = AliyunVod::Service.video_data(video.uuid, start_time, end_time)