<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="style.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.7.1/jquery.min.js"></script>
</head>
<body>
<p align="center">Đồng hồ số</p>
<h1 align="center" id="timeString"></h1>
<script src="script.js"></script>
</body>
</html>
setInterval(timeRead, 1000);
function timeRead() {
const now = new Date();
timeString = "";
var hour = now.getHours();
if (hour < 10) {
timeString = timeString + "0" + hour + ":";
} else {
timeString = timeString + hour + ":";
}
var minute = now.getMinutes();
if (minute < 10) {
timeString = timeString + "0" + minute + ":";
} else {
timeString = timeString + minute + ":";
}
var second = now.getSeconds();
if (second < 10) {
timeString = timeString + "0" + second;
} else {
timeString = timeString + second;
}
$("#timeString").text(timeString);
}