営えい業ぎょう日び

• 定てい休きゅう日びN3

  営業日 means a day a business is open, the direct opposite of 定休日, its regular closing day.

• 休きゅう館かん日びN3

  営業日 means a day when a business or facility is open, the direct opposite of 休館日, which means it is closed.

• 営えい業ぎょう時じ間かん

  営業時間 is the hours within a day that a business is open, whereas 営業日 is a whole day on which the business operates.

Compound of 営業 (business, operations) and 日 (day). The reading is the standard on'yomi combination.