JSFiddle - React, Tailwind, and code Playground

HTML

<div id='budgetTitle'>budgetTitle div</div>
<div id='staticBudget' class="clock hide">staticBudget div</div>
<div id='staticTitle'>staticTitle div</div>
<div id='budgetSpent'class="clock hide">BudgetSpent div</div>

CSS

div {
    border: 1px solid red;
}
div.clock {
    background: grey;
}
div.hide {
    display: none;
}

JavaScript

function swapDivs () {
    $('div').toggleClass('hide', 200);
}

$(function () {
    setInterval(
        function () {
            swapDivs(); // show next div
        },
        3 * 1000
    ); // do this every 3 seconds    
});