http://www.ruby-forum.com/topic/57923#47371
ActiveSupport::CoreExtensions::Date::Conversions::DATE_FORMATS.merge!(
:default => '%m/%d/%Y'
)
ActiveSupport::CoreExtensions::Time::Conversions::DATE_FORMATS.merge!(
:default => '%m/%d/%Y %I:%M %p',
:date_time12 => "%m/%d/%Y %I:%M %p",
:date_time24 => "%m/%d/%Y %H:%M"
)
Only test on Rails 2.3.14