compare_with_coercion (ActiveSupport::CoreExtensions::Time::Calculations)

    # File lib/active_support/core_ext/time/calculations.rb, line 263
            def compare_with_coercion(other)
              # if other is an ActiveSupport::TimeWithZone, coerce a Time instance from it so we can do <=> comparision
              other = other.comparable_time if other.respond_to?(:comparable_time)
              if other.acts_like?(:date)
                # other is a Date/DateTime, so coerce self #to_datetime and hand off to DateTime#<=>
                to_datetime.compare_without_coercion(other)
              else
                compare_without_coercion(other)
              end
            end