title: Sell some products only on a specific day in WooCommerce
body: <p>With Woocommerce I would like to sell certain defined items <strong>on Sunday only</strong>. If anyone tries to purchase outside of Sunday, <strong>it should give an error</strong>. The remaining items in the shop can be purchase anytime. </p>
  
  <p>Is this possible? Any track is really appreciated.</p>
  
  <p><strong>Example</strong> - I have a product called “Sunday Tapas” which is product code “2795”. I want this product available on Sunday’s only. Everything else in the store should be available everyday as normal. </p>