<% (0..48).each do |h| %>
  <%= h %> hours ago - 
  <% time = h.hours.ago %>
  <%= time %> -
  relative time: <b><%= tag.relative_time(datetime: time.to_datetime.rfc3339, prefix: '') { I18n.l(time.to_date) } %></b>
  <br>
<% end %>