js显示时间

<div>
    当前时间是：<span id="date" style="color:darkred"></span>
</div>

<script>
    setInterval(function () {//间隔函数，设定隔多少时间执行一次函数
        var weekday=['日','一','二','三','四','五','六'];
        //年月日星期 时分秒
        let date = new Date();
        var year=date.getFullYear();
        var month=date.getMonth()+1;
        var day=date.getDate();
        var week=date.getDay();
        var hour=date.getHours();
        var minute=date.getMinutes();
        var second=date.getSeconds();
        document.getElementById('date').innerText=year+'年'+month+'月'+day+'日'+'星期'+weekday[week]+
            ' '+hour+':'+minute+':'+second;

    },1000);
</script>
</body>