Таймер обратного отсчета идет в минус

function getTimeRemaining(endtime) { 
  var t = Date.parse(endtime) - Date.parse(new Date()); 
  var seconds = Math.floor((t / 1000) % 60); 
  var minutes = Math.floor((t / 1000 / 60) % 60); 
  var hours = Math.floor((t / (1000 * 60 * 60)) % 24); 
  var days = Math.floor(t / (1000 * 60 * 60 * 24)); 
  return { 
    'total': t, 
    'days': days, 
    'hours': hours, 
    'minutes': minutes, 
    'seconds': seconds 
  }; 
} 
 
function initializeClock(id, endtime) { 
  var clock = document.getElementById(id); 
  var daysSpan = clock.querySelector('.days'); 
  var hoursSpan = clock.querySelector('.hours'); 
  var minutesSpan = clock.querySelector('.minutes'); 
  var secondsSpan = clock.querySelector('.seconds'); 
 
  function updateClock() { 
    var t = getTimeRemaining(endtime); 
 
    daysSpan.innerHTML = t.days; 
    hoursSpan.innerHTML = ('0' + t.hours).slice(-2); 
    minutesSpan.innerHTML = ('0' + t.minutes).slice(-2); 
    secondsSpan.innerHTML = ('0' + t.seconds).slice(-2); 
 
    if (t.total <= 0) { 
      clearInterval(timeinterval); 
    } 
  } 
 
  updateClock(); 
  var timeinterval = setInterval(updateClock, 1000); 
} 
 
var deadline = new Date(Date.parse(new Date()) + 1 * 1 * 1 * 60 * 1000); 
initializeClock('clockdiv', deadline);

<div class="timer"> 
					<div id="clockdiv" class="tmcontainer"> 
						<div class="days-c"> 
							<span class="days pl5"></span> 
							<small>&nbsp;дней</small> 
						</div> 
						<div class="hours-c"> 
							<span class="hours"></span> 
							<small>часов</small> 
						</div> 
						<div class="minutes-c"> 
							<span class="minutes"></span> 
							<small>минут</small> 
						</div> 
						<div class="seconds-c"> 
							<span class="seconds pr5"></span> 
							<small class="pr5">секунд</small> 
						</div> 
					</div> 
				</div>