If the format is "fixed" meaning you don't have to use other format you can have pure JavaScript instead of using whole library to format the date:

//Pad given value to the left with "0"
function AddZero(num) {
    return (num >= 0 && num < 10) ? "0" + num : num + "";
}

window.onload = function() {
    var now = new Date();
    var strDateTime = [[AddZero(now.getDate()), 
        AddZero(now.getMonth() + 1), 
        now.getFullYear()].join("/"), 
        [AddZero(now.getHours()), 
        AddZero(now.getMinutes())].join(":"), 
        now.getHours() >= 12 ? "PM" : "AM"].join(" ");
    document.getElementById("Console").innerHTML = "Now: " + strDateTime;
};

<div id="Console"></div>

The variable strDateTime will hold the date/time in the format you desire and you should be able to tweak it pretty easily if you need.

I'm using join as good practice, nothing more, it's better than adding strings together.