How do I indicate hollidays?

Should it be decided to close on 25 December, it is possible to go to settings, dropdown under the user, and click on Configuration - Holidays. Next, click in the top right of the screen on +New holiday and select the date 25 December. Write in the description, for example, Christmas Day and click on 'Save'. Customers can no longer make bookings for this day. This applies to all products.