how to create time object in javascript code example

Example 1: js set datetime

//new Date(year, month, day, hours, minutes, seconds, milliseconds)
new Date(1776, 6, 4, 12, 30, 0, 0);

// Timestamp method
new Date(-6106015800000);

// Date string method
new Date("January 31 1980 12:30");

Example 2: how make date object in jquery from custom date

var formattedDate = new Date("yourUnformattedOriginalDate");
var d = formattedDate.getDate();
var m =  formattedDate.getMonth();
m += 1;  // JavaScript months are 0-11
var y = formattedDate.getFullYear();

$("#txtDate").val(d + "." + m + "." + y);