Fxing the UTC dates on client side

FixUtcDateOnClient.js

/*
   This script will work only on the client-side 
*/
function toClientDate(dateText) {

    if (!validateInput(dateText)) {
        return '';
    }

    var date = new Date(dateText);
    var offset = date.getTimezoneOffset();
    var theLocalDate = new Date(date.setMinutes(date.getMinutes() - offset));
    return theLocalDate.format('dd/MMM/yyyy HH:mm');
}

function validateInput(text) {
    if (!text) {
        return false;
    }

    var trimText = text.trim();
    if (!trimText) {
        return false;
    }

    return true;
}

// Usage - fix all dates returned from server 
 window.onload = function () {
        var elementsToConvert = document.querySelectorAll('.convertDate');
        for (var i = 0; i < elementsToConvert.length; i++) {
            elementsToConvert[i].innerHTML = toClientDate(elementsToConvert[i].innerHTML);
        }
    }