string_to_time

# File activerecord/lib/active_record/connection_adapters/postgresql/cast.rb, line 16
        def string_to_time(string)
          return string unless String === string

          case string
          when 'infinity'; Float::INFINITY
          when '-infinity'; -Float::INFINITY
          when / BC$/
            super("-" + string.sub(/ BC$/, ""))
          else
            super
          end
        end