DateTime (date and hour) validation with Data Annotation

I have the following code:

        [DisplayName("58.Date and hour of birth")]
        [DataType(DataType.DateTime, ErrorMessage = "Please enter a valid date in the format dd/mm/yyyy hh:mm")]
        [Range(typeof(DateTime), "1/1/2011", "1/1/2016")]
        [RequiredToClose]
        public object V_58 { get; set; }

I want to force the inclusion of time (in format hh:mm) and not only the date. This code considers 1/1/2011 as valid when it shouldn't as it does not containt the hour , Any clue about how to express the correct format ? (dd/mm/yyyy hh:mm)