100LinesOfCode/Beautiful JS Clock/index.html at master · josharsh/100LinesOfCode · GitHub

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<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>day4</title>
    <link rel="stylesheet" href="style.css">
</head>

<body>
    <div class="clock">
        <div class="centerPoint"></div>
        <div class="hourHand"></div>
        <div class="minuteHand"></div>
        <div class="secondHand"></div>
    </div>
    <script>
        function runClock() {
            let currentTime = new Date();
            let secondRotate = (currentTime.getSeconds() / 60) * 360;
            let minuteRotate = (currentTime.getMinutes() / 60) * 360;
            let hourRotate = ((currentTime.getHours() + (currentTime.getMinutes() / 60)) / 12) * 360;

            let secondHand = document.querySelector(".secondHand");
            let minuteHand = document.querySelector(".minuteHand");
            let hourHand = document.querySelector(".hourHand");
            secondHand.style.transform = `rotate(${secondRotate}deg) translateY(-30%)`;
            minuteHand.style.transform = `rotate(${minuteRotate}deg) translateY(-50%)`;
            hourHand.style.transform = `rotate(${hourRotate}deg) translateY(-50%)`;
        }

        setInterval(runClock, 1000);
    </script>
</body>

</html>