type t =
  Netdate.t = {
  year : int;
  month : int;
  day : int;
  hour : int;
  minute : int;
  second : int;
  zone : int;
  week_day : int;
}
val localzone : int
val create : ?zone:int -> float -> t
val parse : string -> t
val since_epoch : t -> float
val parse_epoch : string -> float
val format_to : Netchannels.out_obj_channel -> fmt:string -> t -> unit
val format : fmt:string -> t -> string
val mk_mail_date : ?zone:int -> float -> string
val mk_usenet_date : ?zone:int -> float -> string