<meta charset="UTF-8">

<title>JS + CSS Clock</title>

<style>

html {

background: #018DED url(http://unsplash.it/1500/1000?image=881&blur=50);

background-size: cover;

font-family: 'helvetica neue', serif;

text-align: center;

font-size: 10px;

}

body {

margin: 0;

font-size: 2rem;

display: flex;

flex: 1;

min-height: 100vh;

align-items: center;

}

.clock {

width: 30rem;

height: 30rem;

border: 20px solid white;

border-radius: 50%;

margin: 50px auto;

position: relative;

padding: 2rem;

box-shadow: 0 0 0 4px rgba(0, 0, 0, 0.1),

inset 0 0 0 3px #EFEFEF,

inset 0 0 10px black,

0 0 10px rgba(0, 0, 0, 0.2);

}

.clock-face {

position: relative;

width: 100%;

height: 100%;

transform: translateY(-3px); /* account for the height of the clock hands */

}

.hand {

width: 50%;

height: 6px;

background: black;

position: absolute;

top: 50%;

transform-origin: 100%;

transform: rotate(90deg);

transition: all 0.05s;

transition-timing-function: cubic-bezier(0.1, 2.7, 0.58, 1);

}

</style>

<div class="clock">

<div class="clock-face">

const secondHand = document.querySelector('.second-hand');

const minsHand = document.querySelector('.min-hand');

const hourHand = document.querySelector('.hour-hand');

function setDate() {

const now = new Date();

const seconds = now.getSeconds();

const secondsDegrees = ((seconds / 60) * 360) + 90;

secondHand.style.transform = `rotate(${secondsDegrees}deg)`;

const mins = now.getMinutes();

const minsDegrees = ((mins / 60) * 360) + 90;

minsHand.style.transform = `rotate(${minsDegrees}deg`;

const hours = now.getHours();

const hoursDegrees = ((hours / 12) * 360) + 90;

hourHand.style.transform = `rotate(${hoursDegrees}deg`;

setInterval(setDate, 1000);