type t = private Base.floatval of_sec : Base.float -> tval of_min : Base.float -> tval of_hr : Base.float -> tval of_day : Base.float -> tval of_ms : Base.float -> tval of_us : Base.float -> tval to_sec : t -> Base.floatval to_min : t -> Base.floatval to_hr : t -> Base.floatval to_day : t -> Base.floatval to_ms : t -> Base.floatval to_us : t -> Base.floatval to_string : t -> Base.stringval (*) : t -> Base.float -> tval (/) : t -> Base.float -> tval compare : t -> t -> Base.int