A business day: a day on which companies, banks, or stores operate (typically weekdays excluding weekends and public holidays).
ご注文は営業日3日以内に発送いたします。
We will ship your order within three business days.
当社の営業日は月曜日から金曜日までです（土日祝は休業）。
Our business days are Monday through Friday (closed on weekends and public holidays).
支払期日は営業日でカウントしてください。
Please count the payment deadline in business days.