Open/Close Store Hours & Maintenance mode for WooCommerce Store from jon's blog

With the WooCommerce coming soon plugin, you can set closure notifications for upcoming holidays or events. It also allows you to automate holiday closures for your store. The WooCommerce maintenance mode plugin enables you to send a custom message to customers when the store is undergoing maintenance or has a countdown timer.

The WooCommerce open close plugin allows you to schedule opening and closing times, including breaks, and display business hours at the front end for customers using a shortcode. The store administrator can also send a custom message to customers via email when the store opens.