wheneverでのスケジュール設定サンプル。/config/schedule.rb。crontabを更新するコマンド。bundle exec whenever --update-crontab

schedule.rb

every 1.day, at: '15:01 pm' do
  runner 'Tasks::CreateSummaryReport.execute', output: 'log/cron.log'
end

every(1.day, at: '0:07 am') { runner 'Tasks::CreateDetailReports.new.execute', output: 'log/cron.log' }

every 1.hours do
  runner 'Tasks::CreateSummaryReport.execute', output: 'log/cron.log'
end

every '20 * * * *' do
  runner 'Tasks::CreateSummaryReport.execute', output: 'log/cron.log'
end

every 1.day, at: '1:12 am' do
  runner 'Tasks::CreateSummaryReport.execute', output: 'log/cron.log'
end