The JavaScript Date class handles this for you

var d = new Date(2012, 1, 29) // month is 0-based in the Date constructor
console.log(d.toLocaleDateString())
// Wed Feb 29 2012


d.setDate(d.getDate() + 1)
console.log(d.toLocaleDateString())
// Thu Mar 01 2012


console.log(d.getDate())
// 1

This should fix it up real nice for you.

If you pass the Date constructor a time it will do the rest of the work.

24 hours 60 minutes 60 seconds 1000 milliseconds

var currentDate = new Date(new Date().getTime() + 24 * 60 * 60 * 1000);
var day = currentDate.getDate()
var month = currentDate.getMonth() + 1
var year = currentDate.getFullYear()
document.write("<b>" + day + "/" + month + "/" + year + "</b>")

One thing to keep in mind is that this method will return the date exactly 24 hours from now, which can be inaccurate around daylight savings time.

Phil's answer work's anytime:

var currentDate = new Date();
currentDate.setDate(currentDate.getDate() + 1);

The reason I edited my post is because I myself created a bug which came to light during DST using my old method.

I would use the DateJS library. It can do exactly that.

http://www.datejs.com/

The do the following:

var d = new Date.today().addDays(1).toString("dd-mm-yyyy");

Date.today() - gives you today at midnight.

        //-----------Date Configuration march 18,2014----------------------


//alert(DateFilter);


var date = new Date();
y = date.getFullYear(), m = date.getMonth();
var EndDate = new Date();






switch (DateFilter) {
case 'today': var StartDate = EndDate;   //todays date
break;
case 'yesterday':
var d = new Date();
var previousDate = new Date(d.getTime() - 1000 * 60 * 60 * 24);
var StartDate = new Date(previousDate.yyyymmdd()); //yesterday Date
break;
case 'tomorrow':
var d = new Date();
var NextDate = new Date(d.getTime() + 1000 * 60 * 60 * 24);
var StartDate = new Date(NextDate.yyyymmdd()); //tomorrow Date
break;
case 'thisweek': var StartDate = getMonday(new Date()); //1st date of this week
break;
case 'thismonth': var StartDate = new Date(y, m, 1);  //1st date of this month
break;
case 'thisyear': var StartDate = new Date("01/01/" + date.getFullYear());  //1st date of this year
break;
case 'custom': //var StartDate = $("#txtFromDate").val();
break;
default:
var d = new Date();
var StartDate = new Date(d.getTime() - 30 * 24 * 60 * 60 * 1000); //one month ago date from now.
}




if (DateFilter != "custom") {
var SDate = $.datepicker.formatDate('@Config.DateFormat', StartDate); $("#txtFromDate").val(SDate);
var EDate = $.datepicker.formatDate('@Config.DateFormat', EndDate); $("#txtToDate").val(EDate);
}
//-----------Date Configuration march 18,2014----------------------

function getMonday(d)
{
// var day = d.getDay();
var day = @Config.WeekStartOn
diff = d.getDate() - day + (day == 0 ? -6 : 0);
return new Date(d.setDate(diff));
}

Use cases :

Date.tomorrow() // 1 day next
Date.daysNext(1) // alternative Date.tomorrow()
Date.daysNext(2) // 2 days next.

IF "tomorrow " is not depend of today but of another Date different of Date.now(), Don't use static methods but rather you must use non-static :

i.e: Fri Dec 05 2008

 var dec5_2008=new Date(Date.parse('2008/12/05'));
dec5_2008.tomorrow(); // 2008/12/06
dec5_2008.tomorrow().day // 6
dec5_2008.tomorrow().month // 12
dec5_2008.tomorrow().year //2008
dec5_2008.daysNext(1); // the same as previous
dec5_2008.daysNext(7) // next week :)

API :

Dateold=Date;function Date(e){var t=null;if(e){t=new Dateold(e)}else{t=new Dateold}t.day=t.getDate();t.month=t.getMonth()+1;t.year=t.getFullYear();return t}Date.prototype.daysNext=function(e){if(!e){e=0}return new Date(this.getTime()+24*60*60*1e3*e)};Date.prototype.daysAgo=function(e){if(!e){e=0}return Date.daysNext(-1*e)};Date.prototype.tomorrow=function(){return this.daysNext(1)};Date.prototype.yesterday=function(){return this.daysAgo(1)};Date.tomorrow=function(){return Date.daysNext(1)};Date.yesterday=function(){return Date.daysAgo(1)};Date.daysNext=function(e){if(!e){e=0}return new Date((new Date).getTime()+24*60*60*1e3*e)};Date.daysAgo=function(e){if(!e){e=0}return Date.daysNext(-1*e)}

Method Date.prototype.setDate() accepts even arguments outside the standard range and changes the date accordingly.

function getTomorrow() {
const tomorrow = new Date();
tomorrow.setDate(tomorrow.getDate() + 1); // even 32 is acceptable
return `${tomorrow.getFullYear()}/${tomorrow.getMonth() + 1}/${tomorrow.getDate()}`;
}

Its really simple:

1: Create date object with today' date and time. 2: Use date object methods to retrieve day, month and full year and concatenate them using the + operator.

Sample Code:

var my_date = new Date();
var tomorrow_date = (my_date.getDate() + 1) + "-" + (my_date.getMonth() + 1) + "-" + my_date.getFullYear();
document.write(tomorrow_date);

Method 1: If you don't have problem in using other library, then this could work for you using moment.js

moment().add('days', 1).format('L');

Method 2: Using Date.js,

<script type="text/javascript" src="date.js"></script>
var tomorrow = new Date.today().addDays(1).toString("dd-mm-yyyy");

This method uses external library and not the native Date library. As my bootstrap-datetimepicker was using moment.js and native date library, I preferred method 1. This question mentions these and some other methods.

The below uses a combination of Roderick and Phil's answers with two extra conditionals that account for single digit months/days.

Many APIs I've worked with are picky about this, and require dates to have eight digits (eg '02022017'), instead of the 6 or 7 digits the date class is going to give you in some situations.

function nextDayDate() {
// get today's date then add one
var nextDay = new Date();
nextDay.setDate(nextDay.getDate() + 1);


var month = nextDay.getMonth() + 1;
var day = nextDay.getDate();
var year = nextDay.getFullYear();


if (month < 10) { month = "0" + month }
if (day < 10) { day = "0" + day }


return month + day + year;
}

var curDate = new Date().toLocaleString().split(',')[0];

Simply! in dd.mm.yyyy format.

The same as the original answer, but in one line:

var tomorrow = new Date(Date.now() + 24 * 60 * 60 * 1000)

The numbers stand for 24 hours 60 minutes 60 seconds 1000 milliseconds.

you can try this:

function Tomorrow(date=false) {
var givendate = (date!=false) ? new Date(date) : new Date();
givendate.setDate(givendate.getDate() + 1);
var day = givendate.getUTCDate()
var month = givendate.getUTCMonth()+1
var year = givendate.getUTCFullYear()
result ="<b>" + day + "/" + month + "/" + year + "</b>";
return result;
}
var day = Tomorrow('2020-06-30');
console.log('tomorrows1: '+Tomorrow('2020-06-30'));
console.log('tomorrows2: '+Tomorrow());

        Date.prototype.NextDay = function (e) {
return new Date(this.getFullYear(), this.getMonth(), this.getDate() + ("string" == typeof e ? parseInt(e, 10) : e));
}


// tomorrow
console.log(new Date().NextDay(1))


// day after tomorrow
console.log(new Date().NextDay(2))

Using JS only(Pure js)

Today

new Date()
//Tue Oct 06 2020 12:34:29 GMT+0530 (India Standard Time)
new Date(new Date().setHours(0, 0, 0, 0))
//Tue Oct 06 2020 00:00:00 GMT+0530 (India Standard Time)
new Date(new Date().setHours(0, 0, 0,0)).toLocaleDateString('fr-CA')
//"2020-10-06"

Tomorrow

new Date(+new Date() + 86400000);
//Wed Oct 07 2020 12:44:02 GMT+0530 (India Standard Time)
new Date(+new Date().setHours(0, 0, 0, 0) + 86400000);
//Wed Oct 07 2020 00:00:00 GMT+0530 (India Standard Time)
new Date(+new Date().setHours(0, 0, 0,0)+ 86400000).toLocaleDateString('fr-CA')
//"2020-10-07"
//don't forget the '+' before new Date()

Day after tomorrow

Just multiply by two ex:- 2*86400000

You can find all the locale shortcodes from https://stackoverflow.com/a/3191729/7877099