JSFiddle - React, Tailwind, and code Playground

HTML

<html>
    <head>
        <script type="text/javascript">
            <!--
            function updateTime() {
            var currentTime = new Date();
            var hours = currentTime.getHours();
            var minutes = currentTime.getMinutes();
            var seconds = currentTime.getSeconds();
            if (minutes < 10){
            minutes = "0" + minutes;
            }
            if (seconds < 10){
            seconds = "0" + seconds;
            }
            var v = hours + ":" + minutes + ":" + seconds + " ";
            if(hours > 11){
            v+="PM";
            } else {
            v+="AM"
            }
            setTimeout("updateTime()",1000);
            document.getElementById('time').innerHTML=v;
            }
            updateTime();
            //-->
        </script>
    </head>
    <body>
        <h4>Current Time: <span id="time" /></h4>
    </body>
</html>