a quine is where the full source is reprinted in the display.

So in this case, the code to create this clock in your website is

<script>

(r=n=>setInterval(t=>{for(j=o="\n",y=5;y--;document.body['inne' +'rHTML']="<pre>&lt"+(S="script>\n")+o+"\n\n&lt/"+S)for(x=-001; x++<63;o+=`(r=${r})()`[j++].fontcolor(c?'#FF0':"#444"))c=x/2%4< 3&&[31599,19812,14479,31207,23524,29411,29679,30866,31727,31719 ,1040][(D=Date()[16+(x/8|0)])<10?D:10]&1<<(x/2|0)%4+3*y},100))()

</script>

which is also what is the clockface.