Little helper for the classes Date, DateTime and Time. // date_time_compare.rb: Allows to compare Date and Time objects (allows to sort by mixed Date/Time-keys). // date_creator.rb: New date creations: Date#new_by_mday: Allows "Third sunday in june 2010"... // date_locale.rb: Localization of Date, DateTime and Time. strftime gets a optional parameter to determine the language. Default is en, or if locale is used the current locale.