const degree = 6;const hr = document.querySelector('#hr');const min = document.querySelector('#min');const sec = document.querySelector('#sec');
setInterval(() => {
    const date = new Date();    const hh = date.getHours() * 30;    const mm = date.getMinutes() * degree;    const ss = date.getSeconds() * degree;
    hr.style.transform = `rotateZ(${hh + (mm / 12)}deg)`;    min.style.transform = `rotateZ(${mm}deg)`;    sec.style.transform = `rotateZ(${ss}deg)`;
});