You have the capability to add multiple menus for your Store.
Go to My Stores from the navigation menu > Find your Store > Click Manage Menus > On the top right click + Add Menu
Give a short name to your Menu that describes it best eg. Pool Menu, Brunch Menu,
Add the days and hours this menu is available for ordering.
Click Save when you finish.
Visibility: The menu descriptions are not visible to users, these are only for your own reference.