JSFiddle - React, Tailwind, and code Playground

HTML

<ul id="digital-clock" class="digital">
  <li class="hour"></li>
  <li class="min"></li>
  <li class="sec"></li>
  <li class="meridiem"></li>
</ul>

JavaScript

/* Copyright (c) 2009 José Joaquín Núñez (josejnv@gmail.com) http://joaquinnunez.cl/blog/
  * Licensed under GPL (http://www.opensource.org/licenses/gpl-2.0.php)
  * Use only for non-commercial usage.
  *
  * Version : 0.1
  *
  * Requires: jQuery 1.2+
  */
 
 (function(jQuery)
 {
   jQuery.fn.clock = function(options)
   {
     var defaults = {
       offset: '+0',
       type: 'analog'
     };
     var _this = this;
     var opts = jQuery.extend(defaults, options);
 
     setInterval( function() {
       var seconds = jQuery.calcTime(opts.offset).getSeconds();
       if(opts.type=='analog')
       {
         var sdegree = seconds * 6;
         var srotate = "rotate(" + sdegree + "deg)";
         jQuery(_this).find(".sec").css({"-moz-transform" : srotate, "-webkit-transform" : srotate});
       }
       else
       {          
           jQuery(_this).find(".sec").html(seconds < 10 ? "0" + seconds : seconds);
       }
     }, 1000 );
 
     setInterval( function() {
       var hours = jQuery.calcTime(opts.offset).getHours();
       var mins = jQuery.calcTime(opts.offset).getMinutes();
       if(opts.type=='analog')
       {
         var hdegree = hours * 30 + (mins / 2);
         var hrotate = "rotate(" + hdegree + "deg)";
         jQuery(_this).find(".hour").css({"-moz-transform" : hrotate, "-webkit-transform" : hrotate});
       }
       else
       {
           jQuery(_this).find(".hour").html(hours < 10 ? "0" + hours : hours);
       }
       var meridiem = hours<12?'AM':'PM';
       jQuery(_this).find('.meridiem').html(meridiem);
     }, 1000 );
 
     setInterval( function() {
       var mins = jQuery.calcTime(opts.offset).getMinutes();
       if(opts.type=='analog')
       {
         var mdegree = mins * 6;
         var mrotate = "rotate(" + mdegree + "deg)";        
         jQuery(_this).find(".min").css({"-moz-transform" : mrotate, "-webkit-transform" : mrotate});                
       }
       else
       {
          ...