app/views/timeline/_footer.html.erb
<div class="shifts_bottom" style="clear:both">
<div class="shift_links">
<%= link_to HTMLEntities.new.decode("<< Earlier"), {date: (@period_start - 7), anchor: @period_start - 1 }, class: "last_week" %>
<%= link_to HTMLEntities.new.decode("Later >>"), {date: (@period_start + 7), anchor: @period_start + (2*7) - 1}, class: "next_week" %>
</div>
<div class="week_title">
<%= @period_start.to_s(:just_date_long) %> to <%= (@period_start + 6).to_s(:just_date_long) %>
</div>
</div>