This may work:
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">
<script src="https://code.jquery.com/jquery-1.12.4.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
<script>
$( function() {
$( "#datepicker" ).datepicker();
} );
</script>
</head>
<body>
<p>Date: <input type="text" id="datepicker"></p>
</body>
</html>
Some html tags are not fully functional depending on the browser of device. The code above may work. If not, there are certain frameworks that may be able to help you. I recommend trying to search around because this question has be asked multiple times and there are some reliable solutions out there. Another similar question: How to make the HTML5 input type 'date' trigger the native datepicker on Android?