system-time
by tianyk
HTML
<p id="system-time">
</p>
CSS
html,
body {
height: 100%;
}
body {
display: flex;
justify-content: center;
align-items: center;
}
#system-time {
color: #212121;
font-family: arial, sans-serif;
font-size: xx-large;
text-align: center;
}
JavaScript
const systemTimeEl = document.getElementById('system-time');
setInterval(() => {
const now = new Date();
const year = now.getFullYear();
const month = ('' + (now.getMonth() + 1)).padStart(2, '0');
const date = ('' + now.getDate()).padStart(2, '0');
const hour = ('' + now.getHours()).padStart(2, '0');
const minute = ('' + now.getMinutes()).padStart(2, '0');
const secound = ('' + now.getSeconds()).padStart(2, '0');
systemTimeEl.textContent = `${year}-${month}-${date} ${hour}:${minute}:${secound}`;
}, 1000);