object
  method getDate : int Js.meth
  method getDay : int Js.meth
  method getFullYear : int Js.meth
  method getHours : int Js.meth
  method getMilliseconds : int Js.meth
  method getMinutes : int Js.meth
  method getMonth : int Js.meth
  method getSeconds : int Js.meth
  method getTime : float Js.meth
  method getTimezoneOffset : int Js.meth
  method getUTCDate : int Js.meth
  method getUTCDay : int Js.meth
  method getUTCFullYear : int Js.meth
  method getUTCHours : int Js.meth
  method getUTCMilliseconds : int Js.meth
  method getUTCMinutes : int Js.meth
  method getUTCMonth : int Js.meth
  method getUTCSeconds : int Js.meth
  method setDate : int -> float Js.meth
  method setDay : int -> float Js.meth
  method setFullYear : int -> float Js.meth
  method setHours : int -> float Js.meth
  method setMilliseconds : int -> float Js.meth
  method setMinutes : int -> float Js.meth
  method setMonth : int -> float Js.meth
  method setSeconds : int -> float Js.meth
  method setTime : float -> float Js.meth
  method setUTCDate : int -> float Js.meth
  method setUTCDay : int -> float Js.meth
  method setUTCFullYear : int -> float Js.meth
  method setUTCHours : int -> float Js.meth
  method setUTCMilliseconds : int -> float Js.meth
  method setUTCMinutes : int -> float Js.meth
  method setUTCMonth : int -> float Js.meth
  method setUTCSeconds : int -> float Js.meth
  method toDateString : Js.js_string Js.t Js.meth
  method toISOString : Js.js_string Js.t Js.meth
  method toJSON : 'a -> Js.js_string Js.t Js.meth
  method toLocaleDateString : Js.js_string Js.t Js.meth
  method toLocaleString : Js.js_string Js.t Js.meth
  method toLocaleTimeString : Js.js_string Js.t Js.meth
  method toString : Js.js_string Js.t Js.meth
  method toTimeString : Js.js_string Js.t Js.meth
  method toUTCString : Js.js_string Js.t Js.meth
  method valueOf : float Js.meth
end