Moment.js Sandbox

HTML

<script src="//cdnjs.cloudflare.com/ajax/libs/moment.js/2.2.1/moment.min.js"></script>
<script src="https://code.jquery.com/ui/1.8.20/jquery-ui.min.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.1/css/all.min.css">
<div id="demo"></div>
<label class="control-label" for="coverageStartDate">
  <input 
    type="text" id="coverageStartDate" 
    data-ng-model="coverageStartDate" 
    class="datepick input-small" 
    title="MM/dd/yyyy" 
    pattern="MM/DD/YYYY">
    <span class="datepick add-on" for="coverageStartDate"><i class="far fa-calendar-alt"></i></span></label>

JavaScript

var startDate = "01/27/2020";
var coverageStartDate = new Date(startDate);
document.getElementById("demo").innerHTML = coverageStartDate;

$("#coverageStartDate").datepicker("setDate", coverageStartDate);