JSFiddle - React, Tailwind, and code Playground

HTML

<div id='time'></div>

JavaScript

var date;
var display = document.getElementById('time'); 
setInterval(function(){ 
    date = new Date();
    var currenthours = date.getHours();
    var hours;
    var minutes;
    var secondes;
    if (currenthours != 21){
        if (currenthours < 21)
            hours = 20 - currenthours;
        else hours = 21 + (24 - currenthours);
        minutes = 60 - date.getMinutes();
        secondes = 60 - date.getSeconds();
    display.innerHTML = hours + ':' + minutes + ':' +secondes;
    }
    else display.innerHTML = 'LIVE NOW';
},1000);