duration_helpers.rb

module ActiveSupport
  class Duration
    def in_seconds
      to_f.seconds
    end

    def in_minutes
      (to_f / 60).minutes
    end

    def in_hours
      (to_f / (60 * 60)).hours
    end

    def in_days
      (to_f / (60 * 60 * 24)).days
    end

    def in_weeks
      (to_f / (60 * 60 * 24 * 7)).weeks
    end

    def in_years
      (to_f / (60 * 60 * 24 * 365.2425)).years
    end
  end
end