<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<script>
var now = new Date();
document.write(now + "<br>");
str = now.toLocaleString() + "<br>";
str += now.toLocaleDateString() + "<br>";
str += now.toLocaleTimeString() + "<br>";
document.write(str + "<br>");
</script>
</head>
<body>
</body>
</html>
신입 개발자 입니다!!!