Javascript function for a human readable timestamp in ISO8601 format

timeStamp.js

// Human readable timestamp in ISO8601 format
function timeStamp() {
    var now = new Date();
    var date = [now.getFullYear(), now.getMonth() + 1, now.getDate()];
    var time = [now.getHours(), now.getMinutes(), now.getSeconds()];

    // Prefix a zero to month and day
    date[1] = ("00" + date[1]).slice(-2);
    date[2] = ("00" + date[2]).slice(-2);

    // If seconds and minutes are less than 10, add a zero
    for (var i = 1; i < time.length; i++) {
        if (time[i] < 10) {
            time[i] = "0" + time[i];
        }
    }

    return date.join("-") + " " + time.join(":");
}