JSFiddle - React, Tailwind, and code Playground

HTML

<div id="timez1"></div>
<div id="timez2"></div>

JavaScript

var m = 1;
function countdowny(){
if(daysy == 0 && hoursy == 0 && minutesy == 0 && secondsy == 0){
  //seconds = 0;
  timez.innerHTML = "Auction Ended";
  }
  else{
    if(secondsy == 0){
        secondsy = 59;
        minutesy--;
      }else{
      secondsy--;
      }
      if(minutesy == -1){
      minutesy = 59;
        hoursy--;
       }
       if(hoursy == -1){
         hoursy = 23;
         daysy--;
    }
    if(daysy == -1){
         daysy = 0;
    }
   
    timez.innerHTML = "<span class=''>"+daysy+"D</span><span class=''> "+hoursy+"H</span><span class=''> "+minutesy+"M</span><span class=''> "+secondsy+"S</span>";
    setTimeout(countdowny,1000);   
    }
}

var daysy=3;hoursy=3;minutesy=3;secondsy=3;
  var timez = document.getElementById("timez"+m);
  countdowny();
  m++;
  
    var daysy=2;hoursy=2;minutesy=2;secondsy=2;
  var timez = document.getElementById("timez"+m);
  countdowny();
  m++;