present date difference in minutes javascript code example

Example 1: showing difference between dates in minutes js

const today = new Date();
const endDate = new Date(startDate.setDate(startDate.getDate() + 7));
const days = parseInt((endDate - today) / (1000 * 60 * 60 * 24));
const hours = parseInt(Math.abs(endDate - today) / (1000 * 60 * 60) % 24);
const minutes = parseInt(Math.abs(endDate.getTime() - today.getTime()) / (1000 * 60) % 60);
const seconds = parseInt(Math.abs(endDate.getTime() - today.getTime()) / (1000) % 60);

Example 2: javascript subtract 2 dates get difference in minutes

var diff = Math.abs(new Date('2011/10/09 12:00') - new Date('2011/10/09 00:00'));