style.css

*, *::after, *::before {
    box-sizing: border-box;
    font-family: Gotham Rounded, sans-serif;
}
body {
    background: linear-gradient( #e1ccec, #561f55);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    overflow: hidden;
}
.clock {
    width: 450px;
    height: 450px;

   /* background-image: radial-gradient( rgb(68, 68, 68), rgb(49, 49, 48), rgb(0, 0, 0)); */

   background-image: radial-gradient( rgb(68, 68, 68), rgb(39, 39, 38), rgb(0, 0, 0));
    border-radius: 50%;
    border: 5px solid rgb(255, 255, 255);
    position: relative;
    box-shadow: 3px 10px 12px #181717;
}
.clock .number {
    --rotation: 0;

    position: absolute;
    width: 100%;
    color: white;
    height: 100%;
    text-align: center;
    transform: rotate(var(--rotation));
    font-size: 2.5rem;
}
.clock .number1 {
    --rotation: 30deg;
}
.clock .number2 {
    --rotation: 60deg;
}
.clock .number3 {
    --rotation: 90deg;
}
.clock .number4 {
    --rotation: 120deg;
}
.clock .number5 {
    --rotation: 150deg;
}
.clock .number6 {
    --rotation: 180deg;
}
.clock .number7 {
    --rotation: 210deg;
}
.clock .number8 {
    --rotation: 240deg;
}
.clock .number9 {
    --rotation: 270deg;
}
.clock .number10 {
    --rotation: 300deg;
}
.clock .number11 {
    --rotation: 330deg;
}
.clock .hand {
    --rotation: 0;

    position: absolute;
    bottom: 50%;
    left: 50%;
    border: 1px solid black;
    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;
    border: 2px solid white;
    z-index: 11;
    width: 15px;
    height: 15px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-radius: 50%;
}
.clock .hand.second {
    width: 3.5px;
    height: 45%;
    background-color: red;
}
.clock .hand.minute {
    width: 7px;
    height: 40%;
    background-color: #fff600;
}
.clock .hand.hour {
    width: 10px;
    height: 34%;
    background-color: #9ede73;
}