# File lib/json/add/core.rb, line 41
  def self.json_create(object)
    args = object.values_at('y', 'm', 'd', 'H', 'M', 'S')
    of_a, of_b = object['of'].split('/')
    args << Rational(of_a.to_i, of_b.to_i)
    args << object['sg']
    civil(*args)
  end

# File lib/json/add/core.rb, line 49
  def to_json(*args)
    {
      'json_class' => self.class.name,
      'y' => year,
      'm' => month,
      'd' => day,
      'H' => hour,
      'M' => min,
      'S' => sec,
      'of' => offset.to_s,
      'sg' => sg,
    }.to_json(*args)
  end