datepicker

HTML

<script src="https://code.jquery.com/jquery-1.12.4.js"></script>
<link rel="stylesheet" href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
    <label for="startDate">Date :</label>
    <input name="startDate" id="startDate" class="date-picker" />

JavaScript

$(function() {
    $('.date-picker').datepicker();
});