JSFiddle - React, Tailwind, and code Playground

HTML

Date: 
<span data-bind="momentDate: dt"></span>

<script type="text/javascript" src="http://cdnjs.cloudflare.com/ajax/libs/moment.js/2.0.0/moment.min.js"></script>
<script type="text/javascript" src="http://cdnjs.cloudflare.com/ajax/libs/knockout/2.2.1/knockout-min.js"></script>

JavaScript

ko.bindingHandlers.momentDate = {
        update: function(element, valueAccessor) {
            var value = valueAccessor();
            var formattedValue = moment(ko.utils.unwrapObservable(value)).format('MM/DD/YYYY');
            $(element).text(formattedValue);
        }
    };

var ViewModel = function() {
    var self = this;
    self.dt = ko.observable(new Date());
};

var vm = new ViewModel();
ko.applyBindings(vm);