javascript date day difference code example

Example 1: javascript difference between two dates

const date1 = new Date('7/13/2010');
const date2 = new Date('12/15/2010');
console.log(getDifferenceInDays(date1, date2));
console.log(getDifferenceInHours(date1, date2));
console.log(getDifferenceInMinutes(date1, date2));
console.log(getDifferenceInSeconds(date1, date2));

function getDifferenceInDays(date1, date2) {
  const diffInMs = Math.abs(date2 - date1);
  return diffInMs / (1000 * 60 * 60 * 24);
}

function getDifferenceInHours(date1, date2) {
  const diffInMs = Math.abs(date2 - date1);
  return diffInMs / (1000 * 60 * 60);
}

function getDifferenceInMinutes(date1, date2) {
  const diffInMs = Math.abs(date2 - date1);
  return diffInMs / (1000 * 60);
}

function getDifferenceInSeconds(date1, date2) {
  const diffInMs = Math.abs(date2 - date1);
  return diffInMs / 1000;
}

Example 2: subtracting two date objects in javacript

function findDayDifference(date1, date2) {
	// always round down
  return Math.floor((Math.abs(date2-date1))/(1000*60*60*24));
}

Example 3: angular calculate difference between two dates

// To set two dates to two variables 
    var date1 = new Date("06/30/2019"); 
	var date2 = new Date("07/30/2019"); 
  
    var Time = date2.getTime() - date1.getTime(); 
    var Days = Time / (1000 * 3600 * 24); //Diference in Days