Can I assign dates to display a link?

Hello, I'm doing an application where I have to show a link. The administrative must be able to assign the date where it is displayed and hidden. Sorry for my English.
I think it's done with the gem delayed job, right?

Greetings.

As far as I understand situation, you don't need background jobs here. To display something on a web page within certain date interval, you just need to add this condition to your view:

<% if (start_date..end_date).cover? DateTime.now %>
  <%= link_to 'Your link', '#' %>
<% end %>

Identical condition check could be implemented within a helper or presenter to keep view cleaner.