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JavaScript

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HTML 

              
                
<body>
    <div class="clock">
        <div class="hand hour" id="hand hour"></div>
        <div class="hand minute" id="hand minute"></div>
        <div class="hand second" id="hand second"></div>
        <div class="number number1">1</div>
        <div class="number number2">2</div>
        <div class="number number3">3</div>
        <div class="number number4">4</div>
        <div class="number number5">5</div>
        <div class="number number6">6</div>
        <div class="number number7">7</div>
        <div class="number number8">8</div>
        <div class="number number9">9</div>
        <div class="number number10">10</div>
        <div class="number number11">11</div>
        <div class="number number12">12</div>
      </div>
       
    <script src="index.js"></script>
</body>
!

CSS 

              
                @import url('https://fonts.googleapis.com/css2?family=Roboto:wght@700;900&display=swap');


*, *::after, *::before {
    box-sizing: border-box;
}
  
body {
    background: rosybrown;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    overflow: hidden;
    font-family: "Roboto", sans-serif;
}
  
.clock {
    width: 300px;
    height: 300px;
    background-color: #d4f542;
    border-radius: 50%;
    border: 4px solid black;
    position: relative;
}
  
.number {
    --rotation: 0;
    position: absolute;
    width: 100%;
    height: 100%;
    text-align: center;
    transform: rotate(var(--rotation));
    font-size: 2.5rem;
    font-weight: bold;
}
  
.number1 { --rotation: 30deg; }
.number2 { --rotation: 60deg; }
.number3 { --rotation: 90deg; }
.number4 { --rotation: 120deg; }
.number5 { --rotation: 150deg; }
.number6 { --rotation: 180deg; }
.number7 { --rotation: 210deg; }
.number8 { --rotation: 240deg; }
.number9 { --rotation: 270deg; }
.number10 { --rotation: 300deg; }
.number11 { --rotation: 330deg; }
  
.hand {
    --rotation: 0;
    position: absolute;
    bottom: 50%;
    left: 50%;
    border: 1px solid white;
    border-top-left-radius: 10px;
    border-top-right-radius: 10px;
    transform-origin: bottom;
    z-index: 10;
    transform: translateX(-50%) rotate(calc(var(--rotation) * 1deg));
}

.clock::after {
    content: '';
    position: absolute;
    background-color: black;
    z-index: 11;
    width: 15px;
    height: 15px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-radius: 50%;
}

.clock .hand.second {
    width: 3px;
    height: 45%;
    background-color: red;
}

.clock .hand.minute {
    width: 7px;
    height: 40%;
    background-color: black;
}

.clock .hand.hour {
    width: 10px;
    height: 35%;
    background-color: black;
}
!

JS 

              
                setInterval(clock, 1000);

const hourHand = document.getElementById("hand hour");
const minuteHand = document.getElementById("hand minute");
const secondHand = document.getElementById("hand second");



function clock() {
    const currentDate = new Date();
    const secondsRatio = currentDate.getSeconds() / 60;
    const minutesRatio = (secondsRatio + currentDate.getMinutes()) / 60;
    const hoursRatio = (minutesRatio + currentDate.getHours()) / 12;
    setRotation(secondHand, secondsRatio);
    setRotation(minuteHand, minutesRatio);
    setRotation(hourHand, hoursRatio);
}

function setRotation(element, rotationRatio) {
  element.style.setProperty('--rotation', rotationRatio * 360);
}

clock();
!
999px

Console