auto update copyright year html
<div class="copyright">
<footer>Copyright © <span id="year"></span> , All rights reserved to X</footer>
</div>
<script>
function getCurrentYear() {
return new Date().getFullYear(); // returns the year via local timing
};
document.getElementById("year").innerHTML = getCurrentYear();
//changing the inner html of the span with "year" id to the given year(2021)
</script>