my_time_formats = {
  :date_time12 => "%m/%d/%y %I:%M%p",
  :date_time24 => "%m/%d/%y %H:%M",
  :file => "%Y-%m-%d-%H-%M%p",
  :search => "%m/%d/%Y",
  :default => "%m/%d/%y %I:%M%p"
}
my_date_formats = {
  :date_time12 => "%m/%d/%y",
  :date_time24 => "%m/%d/%y",
  :file => "%Y-%m-%d",
  :search => "%m/%d/%Y",
  :default => "%m/%d/%y"
}

ActiveSupport::CoreExtensions::Time::Conversions::DATE_FORMATS.merge!(my_time_formats)
ActiveSupport::CoreExtensions::Date::Conversions::DATE_FORMATS.merge!(my_date_formats)