hot_date_rails

https://github.com/jomalley2112/hot_date_rails

A gem that allows you to add date only, time only and datetime pickers to your forms. This gem also takes into account the way Ruby doesn't parse certain American-friendly dates so it passes along hidden fields with the values expected by rails. When updating the values they are 'localized' using the locale file to get them into the format expected by the picker.