ISO 8601 date format for microformats
1 2 strftime('%Y-%m-%dT%H:%M:%S%z');
If you're in Ruby, you can access this the quick way with:
1 2 $ irb 3 >> require 'time' 4 => true 5 >> Time.now.iso8601 6 => "2008-07-09T16:13:30+12:00"
Rails example:
1 2 <abbr class="dtstart" title="<%= event.start_date.iso8601"><%= event.start_date.to_s(:long) %></abbr>