Blackhole timer

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <link rel="stylesheet" href="<https://fonts.googleapis.com/css?family=Lato:400,700|Montserrat:900>">
  <title>Document</title>
  <style>

body{
  background-color: white;
}

#timer {
color: #eeeeee;
text-align: center;
text-transform: uppercase;
font-family: 'Lato', sans-serif;
font-size: .4em;
letter-spacing: 2px;
}

.days, .hours, .minutes, .seconds {
display: inline-block;
padding: 15px;
width: 50px;
border-radius: 5px;
}

.days {
background: #EF2F3C;
}

.hours {
background: #F0A202;
}

.minutes {
background: #276FBF;
}

.seconds {
background: #eeeeee;
color: #183059;
}

.numbers {
font-family: 'Montserrat', sans-serif;
color:  #183059;
font-size: 4em;
text-align: center;
}

.white {
position: absolute;
background:  #eeeeee;
height: 85px;
width: 75px;
left: 30%;
top: 2%;
}

.red {
position: absolute;
background:  #EF2F3C;
left: 18%;
top: 9%;
height: 65px;
width: 70px;

}

.blue {
position: absolute;
background:  #276FBF;
height: 80px;
width: 80px;
left: 60%;
top: 5%;

}

.blackhole {
  padding: 15px;
  color: #27ae60;
  text-align: center;
  text-transform: uppercase;
  font-family: 'Lato', sans-serif;
  font-size: 15px;
  font-weight: bold;
  letter-spacing: 1px;
}

  </style>
</head>
<body>

<div id="timer">
  <div class = "blackhole">
    Black Hole
  </div>
  <div class="days">
      <div id="days" class="numbers "> </div>days</div>
    <div class="hours">
      <div  id="hours" class="numbers"> </div>hours</div>
    <div class="minutes">
      <div  id="minutes" class="numbers"> </div>minutes</div>
    <div   class="seconds">
      <div id="seconds" class="numbers"> </div>seconds</div>
    </div>
    <div class = "blackhole">
      absorption
    </div>
</div>
</body>
<script>
  const year = new Date().getFullYear();
const myDate = new Date('May 30, 2021 00:00:00');
console.log(myDate);

// countdown
let timer = setInterval(function() {

// get today's date
const today = new Date().getTime();

// get the difference
const diff = myDate - today;

// math
let days = Math.floor(diff / (1000 * 60 * 60 * 24));
let hours = Math.floor((diff % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
let minutes = Math.floor((diff % (1000 * 60 * 60)) / (1000 * 60));
let seconds = Math.floor((diff % (1000 * 60)) / 1000);

// display
document.getElementById("days").innerHTML=days
document.getElementById("hours").innerHTML=hours
document.getElementById("minutes").innerHTML=minutes
document.getElementById("seconds").innerHTML=seconds

}, 1);
</script>
</html>