getTimeRemaining.js

function getTimeRemaining(endtime) {
    let time = Date.parse(endtime) - Date.parse(new Date().toDateString());

    const THOUSAND = 1000;
    const HOURS_IN_DAY = 24;
    const MINUTES_IN_HOUR = 60;
    const SECONDS_IN_MINUTE = MINUTES_IN_HOUR;

    let seconds = Math.floor(time / THOUSAND % SECONDS_IN_MINUTE);
    let minutes = Math.floor(
      time / THOUSAND / SECONDS_IN_MINUTE % MINUTES_IN_HOUR
    );
    let hours = Math.floor(
      time / (THOUSAND * SECONDS_IN_MINUTE * MINUTES_IN_HOUR) % HOURS_IN_DAY
    );
    let days = Math.floor(
      time / (THOUSAND * SECONDS_IN_MINUTE * MINUTES_IN_HOUR * HOURS_IN_DAY)
    );
    return {
      total: time,
      days: days,
      hours: hours,
      minutes: minutes,
      seconds: seconds
    };
  }
  const falta = getTimeRemaining('2022-05-08 00:00:00');
  console.log(falta);