Перезагрузка страницы в 00:00?

;(function(){
  var today = new Date().getDate()
    , checkInterval = 500 // ms
  ;

  function check() {
    if((new Date).getDate() !== today) window.location.reload(true);
    else setTimeout( check, checkInterval);
  }

  check();
})();

setTimeout(() => location.reload(), new Date().setHours(24,0,0,0) - new Date())

let now = new Date(),
    midnight = new Date().setHours(24,0,0,0),
    secondsToMidnight = midnight - now;
    
setTimeout(function() {
	location.reload()
}, secondsToMidnight)