Changing the date in Countdown - countdown

Question

How can I change the date from my countdown?
I know it is working but can't find the place to change the date!
I'm a newby, sorry for asking!
(function($) {
$.fn.countdown = function(options, callback) {
//custom 'this' selector
thisEl = $(this);
//array of custom settings
var settings = {
'date': null,
'format': null
};
//append the settings array to options
if(options) {
$.extend(settings, options);
}
//main countdown function
function countdown_proc() {
eventDate = Date.parse(settings['date']) / 1000;
currentDate = Math.floor($.now() / 1000);
if(eventDate <= currentDate) {
callback.call(this);
clearInterval(interval);
}
seconds = eventDate - currentDate;
days = Math.floor(seconds / (60 * 60 * 24)); //calculate the number of days
seconds -= days * 60 * 60 * 24; //update the seconds variable with no. of days removed
hours = Math.floor(seconds / (60 * 60));
seconds -= hours * 60 * 60; //update the seconds variable with no. of hours removed
minutes = Math.floor(seconds / 60);
seconds -= minutes * 60; //update the seconds variable with no. of minutes removed
//conditional Ss
if (days == 1) { thisEl.find(".timeRefDays").text("day"); } else { thisEl.find(".timeRefDays").text("days"); }
if (hours == 1) { thisEl.find(".timeRefHours").text("hour"); } else { thisEl.find(".timeRefHours").text("hours"); }
if (minutes == 1) { thisEl.find(".timeRefMinutes").text("minute"); } else { thisEl.find(".timeRefMinutes").text("minutes"); }
if (seconds == 1) { thisEl.find(".timeRefSeconds").text("second"); } else { thisEl.find(".timeRefSeconds").text("seconds"); }
//logic for the two_digits ON setting
if(settings['format'] == "on") {
days = (String(days).length >= 2) ? days : "0" + days;
hours = (String(hours).length >= 2) ? hours : "0" + hours;
minutes = (String(minutes).length >= 2) ? minutes : "0" + minutes;
seconds = (String(seconds).length >= 2) ? seconds : "0" + seconds;
}
//update the countdown's html values.
if(!isNaN(eventDate)) {
thisEl.find(".days").text(days);
thisEl.find(".hours").text(hours);
thisEl.find(".minutes").text(minutes);
thisEl.find(".seconds").text(seconds);
} else {
alert("Invalid date. Here's an example: 12 Tuesday 2012 17:30:00");
clearInterval(interval);
}
}
//run the function
countdown_proc();
//loop the function
interval = setInterval(countdown_proc, 1000);
}
}) (jQuery);

Answer 1

Look for a separate code, or add these lines. Change function/variable/date accordingly
/** Countdown Timer **/
$(document).ready(function() {
"use strict";
$("#countdown").countdown({
date: "20 sep 2020 12:00:00", /** Enter new date here **/
format: "on"
},
function() {
// callback function
});
});

Answer 2

What you provided looks to be the function (the engine) and the code you're looking for calls this. I think you'll find what you are looking for is a line that says something like:
$.fn.countdown({
'date': 'PLACE DATE HERE',
'format': null
}, function(){
//Some code here
);
The values may be slightly different but it'll be something like that. When you call that function, you provide the date to work off of.