DatePicker in maxDate use 23;59:59:999

In the internal _getMinMaxDate I performed this function, this detect if is a maxDate what you want and the maxDate must not be an instance of Date, in that case the function Set time of the end of the Date, it is useful when want to set the Time of the DATE.

Code:

/* Determine the current maximum date - ensure no time components are set. */
_getMinMaxDate: function(inst, minMax) {
            var date = this._determineDate(inst, this._get(inst, minMax + 'Date'), null); ;
            /*ARN, Cuando el maxDate no es un objeto fecha le seteo para que contemple todo el dia  - 23:59:59:999*/
            if (minMax == "max" && !(this._get(inst, minMax + 'Date') instanceof Date)) {
                date.setHours(23);
                date.setMinutes(59);
                date.setSeconds(59);
                date.setMilliseconds(999);
            }
            return date;
        },