ActiveRecord AttributeMethods TimeZoneConversion ClassMethods module ClassMethods Ruby on Rails 3.1.12 Since v3.0.20 Last seen in v4.2.9 Available in: v3.0.20 v3.1.12 v3.2.22.5 v4.0.13 v4.1.16 v4.2.9 Compare with: … v3.0.20 v3.2.22.5 v4.0.13 v4.1.16 v4.2.9 No documentation comment. Methods (defined here) # define_method_attribute # define_method_attribute= Private methods (1) Implementation detail — not part of the public API. # create_time_zone_conversion_attribute?