JSFiddle - React, Tailwind, and code Playground

HTML

<span id="hours"></span>:<span id="minutes"></span>:<span id="seconds"></span>

JavaScript

var sec = -1;
function pad(val) { return val > 9 ? val : "0" + val; }
setInterval(function () {
    $("#seconds").html(pad(++sec % 60));
    $("#minutes").html(pad(parseInt(sec / 60, 10) % 60));
    $("#hours").html(pad(parseInt(sec / 3600, 10)));
}, 1000);

if ($("#seconds") > 3) {
 clearInterval();
}