Awesome

timeago-rails

Use smart-time-ago with your Rails 3 app.

Add gem 'timeago-rails' to your Gemfile.
Run bundle install.
Add //= require timeago to your Javascript manifest file, after //= require jquery.

    <%= content_tag :time, '', class: 'timeago', datetime: 2.days.ago.iso8601 %>
    <script>
      $('.timeago').timeago();
    </script>

Note that smart-time-ago parses ISO8601 timestamp.

See the Usage section on the smart-time-ago project.

TODO: Perhaps should add view helper for creating timeago element?

Released under the MIT License

smart-time-ago License

Thanks to Pragmatic.ly for developing such an awesome plugin.