var newYear = "1 jan 2022";

function countDates() {
  var newYearDate = new Date(newYear);
  var currentDate = new Date();
  const days = Math.floor((newYearDate - currentDate) / (1000*60 * 60 * 24));
  const hours = Math.floor((newYearDate - currentDate) / (1000 * 60 * 60));
  const minutes = Math.floor((newYearDate - currentDate) / (1000 * 60));
  const seconds = Math.floor((newYearDate - currentDate) / 1000);
  console.log(days, hours, minutes,seconds);
}

countDates();

In this code I have substracted the initialized(NewYearDate) date with the current date and tried to get days, hours, minutes out of it, I got the logic on the internet but can't understand why it is divided by 1000 for all the variables (days, hours, minutes).