営業 and 休業: operating hours and a period without business
Read notices dividing morning closure from afternoon operation, without inferring closing time from a sign that says the business is open.
Conducting business or operating
営業, read えいぎょう, refers to business activity or operation. 今日は通常どおり営業しています。 says that the business is operating as usual today.
営業時間は入口に書いてあります。 says that business hours are posted at the entrance. Being open now and having specified opening and closing times are different information.
A day or period without operation
休業, read きゅうぎょう, means suspending business. 設備点検のため、本日は休業します。 says that the business is closed today for equipment inspection.
休業中は電話の対応も休みます。 says that telephone service is also suspended during the closure. The sentence explicitly includes phone handling in its scope.
Dividing one day into time periods
午前中は休業し、午後から営業します。 says that the business is closed in the morning and opens in the afternoon. Do not expand 休業 to the whole day automatically.
A sign saying 営業中です。 announces that the business is currently open. Check business hours and service information separately to learn when it closes or which services are available.
Is the business closed all day in 午前中は休業し、午後から営業します。?
Show the answer and why
No. Closure applies to the morning, and the business opens in the afternoon.