자바스크립트 디데이 구하기

var today = new Date().getTime();
var dday = new Date("2023-03-21:17:20:00+0900").getTime();
var gap = dday - today;
var result = Math.floor(gap / (1000 * 60 * 60 * 24));
var hour = Math.floor((gap % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
var min = Math.floor((gap % (1000 * 60 * 60)) / (1000 * 60));
var sec = Math.floor((gap % (1000 * 60)) / 1000);

console.log(result);
console.log(hour);
console.log(min);
console.log(sec);

결과