JSFiddle - React, Tailwind, and code Playground

HTML

<div id="O">

CSS

#O{
    font-size:10px;
    line-height:5px;
    letter-spacing:-1px;
    font-family:courier new;
    text-align:center;
}

JavaScript

(function L(){
    M=Math;
    p=M.PI/2;
    q=p*4;
    P=M.pow;
    A=M.abs;
    d=new Date();
    m=((S=d.getMinutes())/15*p+p)%q;
    h=(d.getHours()%12/3*p+S/180*p+p)%q;
    s=(d.getSeconds()/15*p+p)%q;
    e=40;
    
    for(r=o='';r<81;r++){
        for(c=0;c<81;){           
            d=M.sqrt(P(r-e,2)+P(c-e,2));
            a=(M.atan2(e-r,e-c++)+q)%q;
            o+='○●'[d-e>0|
                (d<e*.8&A(m-a)*d<1)|
                (d<e/2&A(h-a)*d<1)|
                (d<e&A(s-a)*d<1)|
                (e-d<5&a%p==0)];
            //■□●○
        }
        o+='\n';
    }
    O.innerText=o;
    setTimeout(L,9);
})()