JSFiddle - React, Tailwind, and code Playground

by alnitak

HTML

<table>
    <tr><td id="t1"></td>
        <td>&nbsp;</td>
        <td id="t2"></td>
    </tr>
</table>

CSS

td {
    vertical-align: top;
    font-family: Courier, 'Courier New';
}

JavaScript

var interval = 60000;

function showTime() {
    var now = new Date();
    var now_s = (now / 1000).toFixed(3);
    $('#t1').append(now_s + '<br/>');
};

function showTime2() {
    var now = new Date();
    var now_s = (now / 1000).toFixed(3);
    $('#t2').append(now_s + '<br/>');
    
    var delay = interval - (now % interval);
    setTimeout(showTime2, delay);
};

setInterval(showTime, 60000);

showTime();
showTime2();