Use new Date() to generate a new Date object containing the current date and time.

var today = new Date();
var dd = String(today.getDate()).padStart(2, '0');
var mm = String(today.getMonth() + 1).padStart(2, '0'); //January is 0!
var yyyy = today.getFullYear();

today = mm + '/' + dd + '/' + yyyy;
document.write(today);

This will give you today's date in the format of mm/dd/yyyy.

Simply change today = mm +'/'+ dd +'/'+ yyyy; to whatever format you wish.

I hope this is what you want:

const today = new Date();
const yyyy = today.getFullYear();
let mm = today.getMonth() + 1; // Months start at 0!
let dd = today.getDate();

if (dd < 10) dd = '0' + dd;
if (mm < 10) mm = '0' + mm;

const formattedToday = dd + '/' + mm + '/' + yyyy;

document.getElementById('DATE').value = formattedToday;

How do I get the current date in JavaScript?

const dateObj = new Date();
const month   = dateObj.getUTCMonth() + 1; // months from 1-12
const day     = dateObj.getUTCDate();
const year    = dateObj.getUTCFullYear();

const newDate = year + "/" + month + "/" + day;

// Using template literals:
const newDate = `${year}/${month}/${day}`;

// Using padded values, so that 2023/1/7 becomes 2023/01/07
const pMonth        = month.toString().padStart(2,"0");
const pDay          = day.toString().padStart(2,"0");
const newPaddedDate = `${year}/${pMonth}/${pDay}`;

or you can set new date and give the above values