Ruby: Embedded Ruby (ERb)
Time.now is a ruby function to display the current time. The <%= signifies this is a value being output from ruby.
<%= Time.now %>
This uses the <% (no equals sign) which doesn't output anything on the ruby lines itself, unless you tell it to in the middle of the structure.
<% 5.times do %> I will not con Kate and Nate in class <% end %>
The minus sign with the ending tag gets rid of unsightly line breaks and takes 10 years off your code. Free trial today!
<%= Time.now -%>